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Finding the Fourth Proportional to 125,131.71, 187,715.86 and 36,373.68

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Solution

The fourth proportional to 125,131.71, 187,715.86 and 36,373.68 is: 54,565.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,131.71 : 187,715.86 = 36,373.68 : x
  2. Step 2: Convert to fraction form
    125,131.71/187,715.86 = 36,373.68/x
  3. Step 3: Cross multiply
    125,131.71x = 187,715.86 × 36,373.68
  4. Step 4: Simplify right side
    125,131.71x = 6,827,916,622.56
  5. Step 5: Solve for x
    x = 6,827,916,622.56/125,131.71
  6. Step 6: Final answer
    x = 54,565.84

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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.