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Finding the Fourth Proportional to 96,886.53, 133,737.48 and 71,422.56

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Solution

The fourth proportional to 96,886.53, 133,737.48 and 71,422.56 is: 98,588.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,886.53 : 133,737.48 = 71,422.56 : x
  2. Step 2: Convert to fraction form
    96,886.53/133,737.48 = 71,422.56/x
  3. Step 3: Cross multiply
    96,886.53x = 133,737.48 × 71,422.56
  4. Step 4: Simplify right side
    96,886.53x = 9,551,873,189.55
  5. Step 5: Solve for x
    x = 9,551,873,189.55/96,886.53
  6. Step 6: Final answer
    x = 98,588.25

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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.