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Finding the Fourth Proportional to 108,650.70, 162,962.21 and 42,045.27

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Solution

The fourth proportional to 108,650.70, 162,962.21 and 42,045.27 is: 63,062.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,650.70 : 162,962.21 = 42,045.27 : x
  2. Step 2: Convert to fraction form
    108,650.70/162,962.21 = 42,045.27/x
  3. Step 3: Cross multiply
    108,650.70x = 162,962.21 × 42,045.27
  4. Step 4: Simplify right side
    108,650.70x = 6,851,790,119.25
  5. Step 5: Solve for x
    x = 6,851,790,119.25/108,650.70
  6. Step 6: Final answer
    x = 63,062.55

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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.