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Finding the Fourth Proportional to 103,513.60, 155,306.85 and 44,367.40

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Solution

The fourth proportional to 103,513.60, 155,306.85 and 44,367.40 is: 66,566.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,513.60 : 155,306.85 = 44,367.40 : x
  2. Step 2: Convert to fraction form
    103,513.60/155,306.85 = 44,367.40/x
  3. Step 3: Cross multiply
    103,513.60x = 155,306.85 × 44,367.40
  4. Step 4: Simplify right side
    103,513.60x = 6,890,561,136.69
  5. Step 5: Solve for x
    x = 6,890,561,136.69/103,513.60
  6. Step 6: Final answer
    x = 66,566.72

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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.