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Finding the Fourth Proportional to 125,012.54, 187,489.64 and 36,242.22

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Solution

The fourth proportional to 125,012.54, 187,489.64 and 36,242.22 is: 54,354.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,012.54 : 187,489.64 = 36,242.22 : x
  2. Step 2: Convert to fraction form
    125,012.54/187,489.64 = 36,242.22/x
  3. Step 3: Cross multiply
    125,012.54x = 187,489.64 × 36,242.22
  4. Step 4: Simplify right side
    125,012.54x = 6,795,040,780.60
  5. Step 5: Solve for x
    x = 6,795,040,780.60/125,012.54
  6. Step 6: Final answer
    x = 54,354.87

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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.