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Finding the Fourth Proportional to 156,033.92, 215,332.34 and 88,046.93

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Solution

The fourth proportional to 156,033.92, 215,332.34 and 88,046.93 is: 121,507.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,033.92 : 215,332.34 = 88,046.93 : x
  2. Step 2: Convert to fraction form
    156,033.92/215,332.34 = 88,046.93/x
  3. Step 3: Cross multiply
    156,033.92x = 215,332.34 × 88,046.93
  4. Step 4: Simplify right side
    156,033.92x = 18,959,351,564.81
  5. Step 5: Solve for x
    x = 18,959,351,564.81/156,033.92
  6. Step 6: Final answer
    x = 121,507.88

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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.