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Finding the Fourth Proportional to 71,196.60, 98,253.28 and 39,367.56

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Solution

The fourth proportional to 71,196.60, 98,253.28 and 39,367.56 is: 54,328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,196.60 : 98,253.28 = 39,367.56 : x
  2. Step 2: Convert to fraction form
    71,196.60/98,253.28 = 39,367.56/x
  3. Step 3: Cross multiply
    71,196.60x = 98,253.28 × 39,367.56
  4. Step 4: Simplify right side
    71,196.60x = 3,867,991,895.60
  5. Step 5: Solve for x
    x = 3,867,991,895.60/71,196.60
  6. Step 6: Final answer
    x = 54,328.32

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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.