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Finding the Fourth Proportional to 104,242.80, 156,269.43 and 54,264.18

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Solution

The fourth proportional to 104,242.80, 156,269.43 and 54,264.18 is: 81,346.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,242.80 : 156,269.43 = 54,264.18 : x
  2. Step 2: Convert to fraction form
    104,242.80/156,269.43 = 54,264.18/x
  3. Step 3: Cross multiply
    104,242.80x = 156,269.43 × 54,264.18
  4. Step 4: Simplify right side
    104,242.80x = 8,479,832,478.02
  5. Step 5: Solve for x
    x = 8,479,832,478.02/104,242.80
  6. Step 6: Final answer
    x = 81,346.94

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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.