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Finding the Fourth Proportional to 80,449.64, 120,681.54 and 29,849.24

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Solution

The fourth proportional to 80,449.64, 120,681.54 and 29,849.24 is: 44,776.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,449.64 : 120,681.54 = 29,849.24 : x
  2. Step 2: Convert to fraction form
    80,449.64/120,681.54 = 29,849.24/x
  3. Step 3: Cross multiply
    80,449.64x = 120,681.54 × 29,849.24
  4. Step 4: Simplify right side
    80,449.64x = 3,602,252,251.03
  5. Step 5: Solve for x
    x = 3,602,252,251.03/80,449.64
  6. Step 6: Final answer
    x = 44,776.49

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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.