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Finding the Fourth Proportional to 118,658.92, 177,983.70 and 43,746.68

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Solution

The fourth proportional to 118,658.92, 177,983.70 and 43,746.68 is: 65,618.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,658.92 : 177,983.70 = 43,746.68 : x
  2. Step 2: Convert to fraction form
    118,658.92/177,983.70 = 43,746.68/x
  3. Step 3: Cross multiply
    118,658.92x = 177,983.70 × 43,746.68
  4. Step 4: Simplify right side
    118,658.92x = 7,786,195,969.12
  5. Step 5: Solve for x
    x = 7,786,195,969.12/118,658.92
  6. Step 6: Final answer
    x = 65,618.29

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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.