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Finding the Fourth Proportional to 172,772.55, 259,141.82 and 60,432.03

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Solution

The fourth proportional to 172,772.55, 259,141.82 and 60,432.03 is: 90,642.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,772.55 : 259,141.82 = 60,432.03 : x
  2. Step 2: Convert to fraction form
    172,772.55/259,141.82 = 60,432.03/x
  3. Step 3: Cross multiply
    172,772.55x = 259,141.82 × 60,432.03
  4. Step 4: Simplify right side
    172,772.55x = 15,660,465,938.33
  5. Step 5: Solve for x
    x = 15,660,465,938.33/172,772.55
  6. Step 6: Final answer
    x = 90,642.10

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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.