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Finding the Fourth Proportional to 156,648.92, 216,287.84 and 96,300.47

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Solution

The fourth proportional to 156,648.92, 216,287.84 and 96,300.47 is: 132,963.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,648.92 : 216,287.84 = 96,300.47 : x
  2. Step 2: Convert to fraction form
    156,648.92/216,287.84 = 96,300.47/x
  3. Step 3: Cross multiply
    156,648.92x = 216,287.84 × 96,300.47
  4. Step 4: Simplify right side
    156,648.92x = 20,828,619,806.60
  5. Step 5: Solve for x
    x = 20,828,619,806.60/156,648.92
  6. Step 6: Final answer
    x = 132,963.70

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Why These Related Problems?

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