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Finding the Fourth Proportional to 98,229.80, 135,573.38 and 57,953.42

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Solution

The fourth proportional to 98,229.80, 135,573.38 and 57,953.42 is: 79,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,229.80 : 135,573.38 = 57,953.42 : x
  2. Step 2: Convert to fraction form
    98,229.80/135,573.38 = 57,953.42/x
  3. Step 3: Cross multiply
    98,229.80x = 135,573.38 × 57,953.42
  4. Step 4: Simplify right side
    98,229.80x = 7,856,940,064.33
  5. Step 5: Solve for x
    x = 7,856,940,064.33/98,229.80
  6. Step 6: Final answer
    x = 79,985.30

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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.