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Finding the Fourth Proportional to 139,828,896,010.20, 209,743,344,015.30 and 139,828,896,010.20

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Solution

The fourth proportional to 139,828,896,010.20, 209,743,344,015.30 and 139,828,896,010.20 is: 209,743,344,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,828,896,010.20 : 209,743,344,015.30 = 139,828,896,010.20 : x
  2. Step 2: Convert to fraction form
    139,828,896,010.20/209,743,344,015.30 = 139,828,896,010.20/x
  3. Step 3: Cross multiply
    139,828,896,010.20x = 209,743,344,015.30 × 139,828,896,010.20
  4. Step 4: Simplify right side
    139,828,896,010.20x = 29,328,180,239,146,990,698,496
  5. Step 5: Solve for x
    x = 29,328,180,239,146,990,698,496/139,828,896,010.20
  6. Step 6: Final answer
    x = 209,743,344,015.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.