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Finding the Fourth Proportional to 238,486.28, 357,729.56 and 88,707.15

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Solution

The fourth proportional to 238,486.28, 357,729.56 and 88,707.15 is: 133,060.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,486.28 : 357,729.56 = 88,707.15 : x
  2. Step 2: Convert to fraction form
    238,486.28/357,729.56 = 88,707.15/x
  3. Step 3: Cross multiply
    238,486.28x = 357,729.56 × 88,707.15
  4. Step 4: Simplify right side
    238,486.28x = 31,733,170,126.45
  5. Step 5: Solve for x
    x = 31,733,170,126.45/238,486.28
  6. Step 6: Final answer
    x = 133,060.78

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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.