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Finding the Fourth Proportional to 101,170.14, 139,593.13 and 58,705.89

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Solution

The fourth proportional to 101,170.14, 139,593.13 and 58,705.89 is: 81,001.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,170.14 : 139,593.13 = 58,705.89 : x
  2. Step 2: Convert to fraction form
    101,170.14/139,593.13 = 58,705.89/x
  3. Step 3: Cross multiply
    101,170.14x = 139,593.13 × 58,705.89
  4. Step 4: Simplify right side
    101,170.14x = 8,194,938,934.54
  5. Step 5: Solve for x
    x = 8,194,938,934.54/101,170.14
  6. Step 6: Final answer
    x = 81,001.56

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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.