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Finding the Fourth Proportional to 124,761.94, 187,217.02 and 45,931.52

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Solution

The fourth proportional to 124,761.94, 187,217.02 and 45,931.52 is: 68,924.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,761.94 : 187,217.02 = 45,931.52 : x
  2. Step 2: Convert to fraction form
    124,761.94/187,217.02 = 45,931.52/x
  3. Step 3: Cross multiply
    124,761.94x = 187,217.02 × 45,931.52
  4. Step 4: Simplify right side
    124,761.94x = 8,599,162,298.47
  5. Step 5: Solve for x
    x = 8,599,162,298.47/124,761.94
  6. Step 6: Final answer
    x = 68,924.56

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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.