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Finding the Fourth Proportional to 74,167.20, 111,250.80 and 36,734.40

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Solution

The fourth proportional to 74,167.20, 111,250.80 and 36,734.40 is: 55,101.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,167.20 : 111,250.80 = 36,734.40 : x
  2. Step 2: Convert to fraction form
    74,167.20/111,250.80 = 36,734.40/x
  3. Step 3: Cross multiply
    74,167.20x = 111,250.80 × 36,734.40
  4. Step 4: Simplify right side
    74,167.20x = 4,086,731,387.52
  5. Step 5: Solve for x
    x = 4,086,731,387.52/74,167.20
  6. Step 6: Final answer
    x = 55,101.60

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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.