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Finding the Fourth Proportional to 80,301.70, 120,411.53 and 29,698.16

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Solution

The fourth proportional to 80,301.70, 120,411.53 and 29,698.16 is: 44,532.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,301.70 : 120,411.53 = 29,698.16 : x
  2. Step 2: Convert to fraction form
    80,301.70/120,411.53 = 29,698.16/x
  3. Step 3: Cross multiply
    80,301.70x = 120,411.53 × 29,698.16
  4. Step 4: Simplify right side
    80,301.70x = 3,576,000,883.78
  5. Step 5: Solve for x
    x = 3,576,000,883.78/80,301.70
  6. Step 6: Final answer
    x = 44,532.07

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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.