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Finding the Fourth Proportional to 253,061.92, 379,593.02 and 66,073.42

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Solution

The fourth proportional to 253,061.92, 379,593.02 and 66,073.42 is: 99,110.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,061.92 : 379,593.02 = 66,073.42 : x
  2. Step 2: Convert to fraction form
    253,061.92/379,593.02 = 66,073.42/x
  3. Step 3: Cross multiply
    253,061.92x = 379,593.02 × 66,073.42
  4. Step 4: Simplify right side
    253,061.92x = 25,081,009,039.53
  5. Step 5: Solve for x
    x = 25,081,009,039.53/253,061.92
  6. Step 6: Final answer
    x = 99,110.17

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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.