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Finding the Fourth Proportional to 98,236.32, 135,568.26 and 57,959.88

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Solution

The fourth proportional to 98,236.32, 135,568.26 and 57,959.88 is: 79,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,236.32 : 135,568.26 = 57,959.88 : x
  2. Step 2: Convert to fraction form
    98,236.32/135,568.26 = 57,959.88/x
  3. Step 3: Cross multiply
    98,236.32x = 135,568.26 × 57,959.88
  4. Step 4: Simplify right side
    98,236.32x = 7,857,520,081.41
  5. Step 5: Solve for x
    x = 7,857,520,081.41/98,236.32
  6. Step 6: Final answer
    x = 79,985.90

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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.