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Finding the Fourth Proportional to 125,937.78, 188,909.90 and 41,697.78

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Solution

The fourth proportional to 125,937.78, 188,909.90 and 41,697.78 is: 62,547.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,937.78 : 188,909.90 = 41,697.78 : x
  2. Step 2: Convert to fraction form
    125,937.78/188,909.90 = 41,697.78/x
  3. Step 3: Cross multiply
    125,937.78x = 188,909.90 × 41,697.78
  4. Step 4: Simplify right side
    125,937.78x = 7,877,123,450.02
  5. Step 5: Solve for x
    x = 7,877,123,450.02/125,937.78
  6. Step 6: Final answer
    x = 62,547.74

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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.