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Finding the Fourth Proportional to 125,251.16, 187,835.02 and 57,755.58

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Solution

The fourth proportional to 125,251.16, 187,835.02 and 57,755.58 is: 86,614.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,251.16 : 187,835.02 = 57,755.58 : x
  2. Step 2: Convert to fraction form
    125,251.16/187,835.02 = 57,755.58/x
  3. Step 3: Cross multiply
    125,251.16x = 187,835.02 × 57,755.58
  4. Step 4: Simplify right side
    125,251.16x = 10,848,519,675.64
  5. Step 5: Solve for x
    x = 10,848,519,675.64/125,251.16
  6. Step 6: Final answer
    x = 86,614.13

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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.