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Finding the Fourth Proportional to 83,092.60, 124,638.90 and 53,543.80

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Solution

The fourth proportional to 83,092.60, 124,638.90 and 53,543.80 is: 80,315.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,092.60 : 124,638.90 = 53,543.80 : x
  2. Step 2: Convert to fraction form
    83,092.60/124,638.90 = 53,543.80/x
  3. Step 3: Cross multiply
    83,092.60x = 124,638.90 × 53,543.80
  4. Step 4: Simplify right side
    83,092.60x = 6,673,640,333.82
  5. Step 5: Solve for x
    x = 6,673,640,333.82/83,092.60
  6. Step 6: Final answer
    x = 80,315.70

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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.