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Finding the Fourth Proportional to 125,037.76, 187,465.92 and 58,440.64

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Solution

The fourth proportional to 125,037.76, 187,465.92 and 58,440.64 is: 87,618.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,037.76 : 187,465.92 = 58,440.64 : x
  2. Step 2: Convert to fraction form
    125,037.76/187,465.92 = 58,440.64/x
  3. Step 3: Cross multiply
    125,037.76x = 187,465.92 × 58,440.64
  4. Step 4: Simplify right side
    125,037.76x = 10,955,628,342.99
  5. Step 5: Solve for x
    x = 10,955,628,342.99/125,037.76
  6. Step 6: Final answer
    x = 87,618.56

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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.