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Finding the Fourth Proportional to 80,573.40, 120,744.90 and 59,347.80

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Solution

The fourth proportional to 80,573.40, 120,744.90 and 59,347.80 is: 88,936.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,573.40 : 120,744.90 = 59,347.80 : x
  2. Step 2: Convert to fraction form
    80,573.40/120,744.90 = 59,347.80/x
  3. Step 3: Cross multiply
    80,573.40x = 120,744.90 × 59,347.80
  4. Step 4: Simplify right side
    80,573.40x = 7,165,944,176.22
  5. Step 5: Solve for x
    x = 7,165,944,176.22/80,573.40
  6. Step 6: Final answer
    x = 88,936.85

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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.