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Finding the Fourth Proportional to 71,367.52, 98,447.50 and 56,204.32

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Solution

The fourth proportional to 71,367.52, 98,447.50 and 56,204.32 is: 77,530.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,367.52 : 98,447.50 = 56,204.32 : x
  2. Step 2: Convert to fraction form
    71,367.52/98,447.50 = 56,204.32/x
  3. Step 3: Cross multiply
    71,367.52x = 98,447.50 × 56,204.32
  4. Step 4: Simplify right side
    71,367.52x = 5,533,174,793.20
  5. Step 5: Solve for x
    x = 5,533,174,793.20/71,367.52
  6. Step 6: Final answer
    x = 77,530.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.