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Finding the Fourth Proportional to 87,610.42, 120,902.42 and 47,324.18

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Solution

The fourth proportional to 87,610.42, 120,902.42 and 47,324.18 is: 65,307.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,610.42 : 120,902.42 = 47,324.18 : x
  2. Step 2: Convert to fraction form
    87,610.42/120,902.42 = 47,324.18/x
  3. Step 3: Cross multiply
    87,610.42x = 120,902.42 × 47,324.18
  4. Step 4: Simplify right side
    87,610.42x = 5,721,607,045.38
  5. Step 5: Solve for x
    x = 5,721,607,045.38/87,610.42
  6. Step 6: Final answer
    x = 65,307.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.