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Finding the Fourth Proportional to 104,587.61, 156,843.54 and 57,237.71

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Solution

The fourth proportional to 104,587.61, 156,843.54 and 57,237.71 is: 85,835.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,587.61 : 156,843.54 = 57,237.71 : x
  2. Step 2: Convert to fraction form
    104,587.61/156,843.54 = 57,237.71/x
  3. Step 3: Cross multiply
    104,587.61x = 156,843.54 × 57,237.71
  4. Step 4: Simplify right side
    104,587.61x = 8,977,364,273.68
  5. Step 5: Solve for x
    x = 8,977,364,273.68/104,587.61
  6. Step 6: Final answer
    x = 85,835.83

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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.