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Finding the Fourth Proportional to 108,422.40, 162,657.90 and 41,856.60

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Solution

The fourth proportional to 108,422.40, 162,657.90 and 41,856.60 is: 62,794.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,422.40 : 162,657.90 = 41,856.60 : x
  2. Step 2: Convert to fraction form
    108,422.40/162,657.90 = 41,856.60/x
  3. Step 3: Cross multiply
    108,422.40x = 162,657.90 × 41,856.60
  4. Step 4: Simplify right side
    108,422.40x = 6,808,306,657.14
  5. Step 5: Solve for x
    x = 6,808,306,657.14/108,422.40
  6. Step 6: Final answer
    x = 62,794.28

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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.