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Finding the Fourth Proportional to 172,493.40, 238,034.70 and 96,009.96

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Solution

The fourth proportional to 172,493.40, 238,034.70 and 96,009.96 is: 132,490.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,493.40 : 238,034.70 = 96,009.96 : x
  2. Step 2: Convert to fraction form
    172,493.40/238,034.70 = 96,009.96/x
  3. Step 3: Cross multiply
    172,493.40x = 238,034.70 × 96,009.96
  4. Step 4: Simplify right side
    172,493.40x = 22,853,702,025.61
  5. Step 5: Solve for x
    x = 22,853,702,025.61/172,493.40
  6. Step 6: Final answer
    x = 132,490.30

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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.