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Finding the Fourth Proportional to 138,001.98, 207,027.57 and 38,159.96

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Solution

The fourth proportional to 138,001.98, 207,027.57 and 38,159.96 is: 57,246.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,001.98 : 207,027.57 = 38,159.96 : x
  2. Step 2: Convert to fraction form
    138,001.98/207,027.57 = 38,159.96/x
  3. Step 3: Cross multiply
    138,001.98x = 207,027.57 × 38,159.96
  4. Step 4: Simplify right side
    138,001.98x = 7,900,163,955.26
  5. Step 5: Solve for x
    x = 7,900,163,955.26/138,001.98
  6. Step 6: Final answer
    x = 57,246.74

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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.