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Finding the Fourth Proportional to 103,082.77, 142,251.81 and 60,644.03

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Solution

The fourth proportional to 103,082.77, 142,251.81 and 60,644.03 is: 83,687.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,082.77 : 142,251.81 = 60,644.03 : x
  2. Step 2: Convert to fraction form
    103,082.77/142,251.81 = 60,644.03/x
  3. Step 3: Cross multiply
    103,082.77x = 142,251.81 × 60,644.03
  4. Step 4: Simplify right side
    103,082.77x = 8,626,723,033.19
  5. Step 5: Solve for x
    x = 8,626,723,033.19/103,082.77
  6. Step 6: Final answer
    x = 83,687.35

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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.