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Finding the Fourth Proportional to 80,325.40, 120,498.68 and 29,717.56

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Solution

The fourth proportional to 80,325.40, 120,498.68 and 29,717.56 is: 44,580.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,325.40 : 120,498.68 = 29,717.56 : x
  2. Step 2: Convert to fraction form
    80,325.40/120,498.68 = 29,717.56/x
  3. Step 3: Cross multiply
    80,325.40x = 120,498.68 × 29,717.56
  4. Step 4: Simplify right side
    80,325.40x = 3,580,926,752.82
  5. Step 5: Solve for x
    x = 3,580,926,752.82/80,325.40
  6. Step 6: Final answer
    x = 44,580.25

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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.