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Finding the Fourth Proportional to 73,892.05, 101,971.13 and 42,060.94

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Solution

The fourth proportional to 73,892.05, 101,971.13 and 42,060.94 is: 58,044.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,892.05 : 101,971.13 = 42,060.94 : x
  2. Step 2: Convert to fraction form
    73,892.05/101,971.13 = 42,060.94/x
  3. Step 3: Cross multiply
    73,892.05x = 101,971.13 × 42,060.94
  4. Step 4: Simplify right side
    73,892.05x = 4,289,001,115.43
  5. Step 5: Solve for x
    x = 4,289,001,115.43/73,892.05
  6. Step 6: Final answer
    x = 58,044.15

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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.