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Finding the Fourth Proportional to 172,360.94, 237,760.92 and 103,432.55

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Solution

The fourth proportional to 172,360.94, 237,760.92 and 103,432.55 is: 142,678.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,360.94 : 237,760.92 = 103,432.55 : x
  2. Step 2: Convert to fraction form
    172,360.94/237,760.92 = 103,432.55/x
  3. Step 3: Cross multiply
    172,360.94x = 237,760.92 × 103,432.55
  4. Step 4: Simplify right side
    172,360.94x = 24,592,218,245.95
  5. Step 5: Solve for x
    x = 24,592,218,245.95/172,360.94
  6. Step 6: Final answer
    x = 142,678.60

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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.