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Finding the Fourth Proportional to 238,318.16, 356,708.76 and 131,534

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Solution

The fourth proportional to 238,318.16, 356,708.76 and 131,534 is: 196,876.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,318.16 : 356,708.76 = 131,534 : x
  2. Step 2: Convert to fraction form
    238,318.16/356,708.76 = 131,534/x
  3. Step 3: Cross multiply
    238,318.16x = 356,708.76 × 131,534
  4. Step 4: Simplify right side
    238,318.16x = 46,919,330,037.84
  5. Step 5: Solve for x
    x = 46,919,330,037.84/238,318.16
  6. Step 6: Final answer
    x = 196,876.86

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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.