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Finding the Fourth Proportional to 238,220,328.70, 356,574,665.85 and 238,220,328.70

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Solution

The fourth proportional to 238,220,328.70, 356,574,665.85 and 238,220,328.70 is: 356,574,665.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,220,328.70 : 356,574,665.85 = 238,220,328.70 : x
  2. Step 2: Convert to fraction form
    238,220,328.70/356,574,665.85 = 238,220,328.70/x
  3. Step 3: Cross multiply
    238,220,328.70x = 356,574,665.85 × 238,220,328.70
  4. Step 4: Simplify right side
    238,220,328.70x = 84,943,334,104,879,664
  5. Step 5: Solve for x
    x = 84,943,334,104,879,664/238,220,328.70
  6. Step 6: Final answer
    x = 356,574,665.85

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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.