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Finding the Fourth Proportional to 178,708.52, 268,173.57 and 103,863.91

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Solution

The fourth proportional to 178,708.52, 268,173.57 and 103,863.91 is: 155,860.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,708.52 : 268,173.57 = 103,863.91 : x
  2. Step 2: Convert to fraction form
    178,708.52/268,173.57 = 103,863.91/x
  3. Step 3: Cross multiply
    178,708.52x = 268,173.57 × 103,863.91
  4. Step 4: Simplify right side
    178,708.52x = 27,853,555,538.86
  5. Step 5: Solve for x
    x = 27,853,555,538.86/178,708.52
  6. Step 6: Final answer
    x = 155,860.26

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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.