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Finding the Fourth Proportional to 103,671.50, 155,414.67 and 40,476.92

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Solution

The fourth proportional to 103,671.50, 155,414.67 and 40,476.92 is: 60,679.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,671.50 : 155,414.67 = 40,476.92 : x
  2. Step 2: Convert to fraction form
    103,671.50/155,414.67 = 40,476.92/x
  3. Step 3: Cross multiply
    103,671.50x = 155,414.67 × 40,476.92
  4. Step 4: Simplify right side
    103,671.50x = 6,290,706,387.34
  5. Step 5: Solve for x
    x = 6,290,706,387.34/103,671.50
  6. Step 6: Final answer
    x = 60,679.23

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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.