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Finding the Fourth Proportional to 165,285.68, 228,099.80 and 92,691.68

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Solution

The fourth proportional to 165,285.68, 228,099.80 and 92,691.68 is: 127,917.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,285.68 : 228,099.80 = 92,691.68 : x
  2. Step 2: Convert to fraction form
    165,285.68/228,099.80 = 92,691.68/x
  3. Step 3: Cross multiply
    165,285.68x = 228,099.80 × 92,691.68
  4. Step 4: Simplify right side
    165,285.68x = 21,142,953,669.66
  5. Step 5: Solve for x
    x = 21,142,953,669.66/165,285.68
  6. Step 6: Final answer
    x = 127,917.64

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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.