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Finding the Fourth Proportional to 71,567.70, 107,221.95 and 60,422.10

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Solution

The fourth proportional to 71,567.70, 107,221.95 and 60,422.10 is: 90,523.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,567.70 : 107,221.95 = 60,422.10 : x
  2. Step 2: Convert to fraction form
    71,567.70/107,221.95 = 60,422.10/x
  3. Step 3: Cross multiply
    71,567.70x = 107,221.95 × 60,422.10
  4. Step 4: Simplify right side
    71,567.70x = 6,478,575,385.10
  5. Step 5: Solve for x
    x = 6,478,575,385.10/71,567.70
  6. Step 6: Final answer
    x = 90,523.73

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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.