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Finding the Fourth Proportional to 108,686.61, 163,076.85 and 58,801.86

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Solution

The fourth proportional to 108,686.61, 163,076.85 and 58,801.86 is: 88,228.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,686.61 : 163,076.85 = 58,801.86 : x
  2. Step 2: Convert to fraction form
    108,686.61/163,076.85 = 58,801.86/x
  3. Step 3: Cross multiply
    108,686.61x = 163,076.85 × 58,801.86
  4. Step 4: Simplify right side
    108,686.61x = 9,589,222,102.94
  5. Step 5: Solve for x
    x = 9,589,222,102.94/108,686.61
  6. Step 6: Final answer
    x = 88,228.18

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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.