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Finding the Fourth Proportional to 113,339.52, 156,441.48 and 75,613.68

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Solution

The fourth proportional to 113,339.52, 156,441.48 and 75,613.68 is: 104,368.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,339.52 : 156,441.48 = 75,613.68 : x
  2. Step 2: Convert to fraction form
    113,339.52/156,441.48 = 75,613.68/x
  3. Step 3: Cross multiply
    113,339.52x = 156,441.48 × 75,613.68
  4. Step 4: Simplify right side
    113,339.52x = 11,829,116,007.45
  5. Step 5: Solve for x
    x = 11,829,116,007.45/113,339.52
  6. Step 6: Final answer
    x = 104,368.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.