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Finding the Fourth Proportional to 108,041.64, 162,062.46 and 29,155.86

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Solution

The fourth proportional to 108,041.64, 162,062.46 and 29,155.86 is: 43,733.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,041.64 : 162,062.46 = 29,155.86 : x
  2. Step 2: Convert to fraction form
    108,041.64/162,062.46 = 29,155.86/x
  3. Step 3: Cross multiply
    108,041.64x = 162,062.46 × 29,155.86
  4. Step 4: Simplify right side
    108,041.64x = 4,725,070,395.02
  5. Step 5: Solve for x
    x = 4,725,070,395.02/108,041.64
  6. Step 6: Final answer
    x = 43,733.79

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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.