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Finding the Fourth Proportional to 125,264.69, 187,426.20 and 87,897.68

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Solution

The fourth proportional to 125,264.69, 187,426.20 and 87,897.68 is: 131,516.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,264.69 : 187,426.20 = 87,897.68 : x
  2. Step 2: Convert to fraction form
    125,264.69/187,426.20 = 87,897.68/x
  3. Step 3: Cross multiply
    125,264.69x = 187,426.20 × 87,897.68
  4. Step 4: Simplify right side
    125,264.69x = 16,474,328,151.22
  5. Step 5: Solve for x
    x = 16,474,328,151.22/125,264.69
  6. Step 6: Final answer
    x = 131,516.14

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1.5x scale

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.