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Finding the Fourth Proportional to 103,860.96, 155,679.12 and 41,462.88

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Solution

The fourth proportional to 103,860.96, 155,679.12 and 41,462.88 is: 62,149.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,860.96 : 155,679.12 = 41,462.88 : x
  2. Step 2: Convert to fraction form
    103,860.96/155,679.12 = 41,462.88/x
  3. Step 3: Cross multiply
    103,860.96x = 155,679.12 × 41,462.88
  4. Step 4: Simplify right side
    103,860.96x = 6,454,904,671.07
  5. Step 5: Solve for x
    x = 6,454,904,671.07/103,860.96
  6. Step 6: Final answer
    x = 62,149.48

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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.