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Finding the Fourth Proportional to 71,196.76, 98,252.76 and 39,365.79

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Solution

The fourth proportional to 71,196.76, 98,252.76 and 39,365.79 is: 54,325.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,196.76 : 98,252.76 = 39,365.79 : x
  2. Step 2: Convert to fraction form
    71,196.76/98,252.76 = 39,365.79/x
  3. Step 3: Cross multiply
    71,196.76x = 98,252.76 × 39,365.79
  4. Step 4: Simplify right side
    71,196.76x = 3,867,797,517.08
  5. Step 5: Solve for x
    x = 3,867,797,517.08/71,196.76
  6. Step 6: Final answer
    x = 54,325.47

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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.