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Finding the Fourth Proportional to 118,432.14, 163,481.67 and 73,117.50

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Solution

The fourth proportional to 118,432.14, 163,481.67 and 73,117.50 is: 100,930.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,432.14 : 163,481.67 = 73,117.50 : x
  2. Step 2: Convert to fraction form
    118,432.14/163,481.67 = 73,117.50/x
  3. Step 3: Cross multiply
    118,432.14x = 163,481.67 × 73,117.50
  4. Step 4: Simplify right side
    118,432.14x = 11,953,371,006.23
  5. Step 5: Solve for x
    x = 11,953,371,006.23/118,432.14
  6. Step 6: Final answer
    x = 100,930.13

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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.