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Finding the Fourth Proportional to 171,373.30, 236,437.92 and 99,738.13

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Solution

The fourth proportional to 171,373.30, 236,437.92 and 99,738.13 is: 137,605.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,373.30 : 236,437.92 = 99,738.13 : x
  2. Step 2: Convert to fraction form
    171,373.30/236,437.92 = 99,738.13/x
  3. Step 3: Cross multiply
    171,373.30x = 236,437.92 × 99,738.13
  4. Step 4: Simplify right side
    171,373.30x = 23,581,876,001.89
  5. Step 5: Solve for x
    x = 23,581,876,001.89/171,373.30
  6. Step 6: Final answer
    x = 137,605.31

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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.