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Finding the Fourth Proportional to 67,334.60, 100,855.02 and 55,515.08

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Solution

The fourth proportional to 67,334.60, 100,855.02 and 55,515.08 is: 83,151.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,334.60 : 100,855.02 = 55,515.08 : x
  2. Step 2: Convert to fraction form
    67,334.60/100,855.02 = 55,515.08/x
  3. Step 3: Cross multiply
    67,334.60x = 100,855.02 × 55,515.08
  4. Step 4: Simplify right side
    67,334.60x = 5,598,974,503.70
  5. Step 5: Solve for x
    x = 5,598,974,503.70/67,334.60
  6. Step 6: Final answer
    x = 83,151.52

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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.