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Finding the Fourth Proportional to 71,195.53, 98,245.02 and 39,360.10

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Solution

The fourth proportional to 71,195.53, 98,245.02 and 39,360.10 is: 54,314.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,195.53 : 98,245.02 = 39,360.10 : x
  2. Step 2: Convert to fraction form
    71,195.53/98,245.02 = 39,360.10/x
  3. Step 3: Cross multiply
    71,195.53x = 98,245.02 × 39,360.10
  4. Step 4: Simplify right side
    71,195.53x = 3,866,933,811.70
  5. Step 5: Solve for x
    x = 3,866,933,811.70/71,195.53
  6. Step 6: Final answer
    x = 54,314.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.