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Finding the Fourth Proportional to 181,659.92, 272,508.46 and 69,434.60

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Solution

The fourth proportional to 181,659.92, 272,508.46 and 69,434.60 is: 104,159.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,659.92 : 272,508.46 = 69,434.60 : x
  2. Step 2: Convert to fraction form
    181,659.92/272,508.46 = 69,434.60/x
  3. Step 3: Cross multiply
    181,659.92x = 272,508.46 × 69,434.60
  4. Step 4: Simplify right side
    181,659.92x = 18,921,515,916.72
  5. Step 5: Solve for x
    x = 18,921,515,916.72/181,659.92
  6. Step 6: Final answer
    x = 104,159.00

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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.