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Finding the Fourth Proportional to 103,903.80, 155,625.30 and 41,542.20

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Solution

The fourth proportional to 103,903.80, 155,625.30 and 41,542.20 is: 62,221.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,903.80 : 155,625.30 = 41,542.20 : x
  2. Step 2: Convert to fraction form
    103,903.80/155,625.30 = 41,542.20/x
  3. Step 3: Cross multiply
    103,903.80x = 155,625.30 × 41,542.20
  4. Step 4: Simplify right side
    103,903.80x = 6,465,017,337.66
  5. Step 5: Solve for x
    x = 6,465,017,337.66/103,903.80
  6. Step 6: Final answer
    x = 62,221.18

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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.