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Finding the Fourth Proportional to 156,034.92, 215,333.72 and 88,047.93

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Solution

The fourth proportional to 156,034.92, 215,333.72 and 88,047.93 is: 121,509.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,034.92 : 215,333.72 = 88,047.93 : x
  2. Step 2: Convert to fraction form
    156,034.92/215,333.72 = 88,047.93/x
  3. Step 3: Cross multiply
    156,034.92x = 215,333.72 × 88,047.93
  4. Step 4: Simplify right side
    156,034.92x = 18,959,688,305.20
  5. Step 5: Solve for x
    x = 18,959,688,305.20/156,034.92
  6. Step 6: Final answer
    x = 121,509.26

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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.