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Finding the Fourth Proportional to 73,166.90, 109,742.45 and 49,625.46

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Solution

The fourth proportional to 73,166.90, 109,742.45 and 49,625.46 is: 74,432.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,166.90 : 109,742.45 = 49,625.46 : x
  2. Step 2: Convert to fraction form
    73,166.90/109,742.45 = 49,625.46/x
  3. Step 3: Cross multiply
    73,166.90x = 109,742.45 × 49,625.46
  4. Step 4: Simplify right side
    73,166.90x = 5,446,019,314.65
  5. Step 5: Solve for x
    x = 5,446,019,314.65/73,166.90
  6. Step 6: Final answer
    x = 74,432.83

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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.