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Finding the Fourth Proportional to 173,280, 239,127.12 and 93,792

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Solution

The fourth proportional to 173,280, 239,127.12 and 93,792 is: 129,433.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,280 : 239,127.12 = 93,792 : x
  2. Step 2: Convert to fraction form
    173,280/239,127.12 = 93,792/x
  3. Step 3: Cross multiply
    173,280x = 239,127.12 × 93,792
  4. Step 4: Simplify right side
    173,280x = 22,428,210,839.04
  5. Step 5: Solve for x
    x = 22,428,210,839.04/173,280
  6. Step 6: Final answer
    x = 129,433.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.