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Finding the Fourth Proportional to 170,843.90, 256,265.85 and 97,115.90

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Solution

The fourth proportional to 170,843.90, 256,265.85 and 97,115.90 is: 145,673.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,843.90 : 256,265.85 = 97,115.90 : x
  2. Step 2: Convert to fraction form
    170,843.90/256,265.85 = 97,115.90/x
  3. Step 3: Cross multiply
    170,843.90x = 256,265.85 × 97,115.90
  4. Step 4: Simplify right side
    170,843.90x = 24,887,488,662.02
  5. Step 5: Solve for x
    x = 24,887,488,662.02/170,843.90
  6. Step 6: Final answer
    x = 145,673.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.