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Finding the Fourth Proportional to 92,006.80, 138,010.20 and 32,909.20

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Solution

The fourth proportional to 92,006.80, 138,010.20 and 32,909.20 is: 49,363.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,006.80 : 138,010.20 = 32,909.20 : x
  2. Step 2: Convert to fraction form
    92,006.80/138,010.20 = 32,909.20/x
  3. Step 3: Cross multiply
    92,006.80x = 138,010.20 × 32,909.20
  4. Step 4: Simplify right side
    92,006.80x = 4,541,805,273.84
  5. Step 5: Solve for x
    x = 4,541,805,273.84/92,006.80
  6. Step 6: Final answer
    x = 49,363.80

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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.