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Finding the Fourth Proportional to 158,490,010.80, 221,432,518.80 and 158,490,010.80

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Solution

The fourth proportional to 158,490,010.80, 221,432,518.80 and 158,490,010.80 is: 221,432,518.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,490,010.80 : 221,432,518.80 = 158,490,010.80 : x
  2. Step 2: Convert to fraction form
    158,490,010.80/221,432,518.80 = 158,490,010.80/x
  3. Step 3: Cross multiply
    158,490,010.80x = 221,432,518.80 × 158,490,010.80
  4. Step 4: Simplify right side
    158,490,010.80x = 35,094,842,296,083,208
  5. Step 5: Solve for x
    x = 35,094,842,296,083,208/158,490,010.80
  6. Step 6: Final answer
    x = 221,432,518.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.