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Finding the Fourth Proportional to 172,354.52, 237,771.49 and 100,702.32

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Solution

The fourth proportional to 172,354.52, 237,771.49 and 100,702.32 is: 138,923.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,354.52 : 237,771.49 = 100,702.32 : x
  2. Step 2: Convert to fraction form
    172,354.52/237,771.49 = 100,702.32/x
  3. Step 3: Cross multiply
    172,354.52x = 237,771.49 × 100,702.32
  4. Step 4: Simplify right side
    172,354.52x = 23,944,140,672.86
  5. Step 5: Solve for x
    x = 23,944,140,672.86/172,354.52
  6. Step 6: Final answer
    x = 138,923.78

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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.