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Finding the Fourth Proportional to 76,143.80, 114,220.18 and 29,396.92

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Solution

The fourth proportional to 76,143.80, 114,220.18 and 29,396.92 is: 44,097.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,143.80 : 114,220.18 = 29,396.92 : x
  2. Step 2: Convert to fraction form
    76,143.80/114,220.18 = 29,396.92/x
  3. Step 3: Cross multiply
    76,143.80x = 114,220.18 × 29,396.92
  4. Step 4: Simplify right side
    76,143.80x = 3,357,721,493.85
  5. Step 5: Solve for x
    x = 3,357,721,493.85/76,143.80
  6. Step 6: Final answer
    x = 44,097.11

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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.