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Finding the Fourth Proportional to 125,135.57, 187,572.78 and 61,916.24

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Solution

The fourth proportional to 125,135.57, 187,572.78 and 61,916.24 is: 92,809.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,135.57 : 187,572.78 = 61,916.24 : x
  2. Step 2: Convert to fraction form
    125,135.57/187,572.78 = 61,916.24/x
  3. Step 3: Cross multiply
    125,135.57x = 187,572.78 × 61,916.24
  4. Step 4: Simplify right side
    125,135.57x = 11,613,800,326.08
  5. Step 5: Solve for x
    x = 11,613,800,326.08/125,135.57
  6. Step 6: Final answer
    x = 92,809.75

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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.