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Finding the Fourth Proportional to 103,695.30, 155,542.95 and 44,520.90

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Solution

The fourth proportional to 103,695.30, 155,542.95 and 44,520.90 is: 66,781.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,695.30 : 155,542.95 = 44,520.90 : x
  2. Step 2: Convert to fraction form
    103,695.30/155,542.95 = 44,520.90/x
  3. Step 3: Cross multiply
    103,695.30x = 155,542.95 × 44,520.90
  4. Step 4: Simplify right side
    103,695.30x = 6,924,912,122.66
  5. Step 5: Solve for x
    x = 6,924,912,122.66/103,695.30
  6. Step 6: Final answer
    x = 66,781.35

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1.5x scale

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.