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Finding the Fourth Proportional to 170,144.01, 255,373.90 and 85,963.30

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Solution

The fourth proportional to 170,144.01, 255,373.90 and 85,963.30 is: 129,024.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,144.01 : 255,373.90 = 85,963.30 : x
  2. Step 2: Convert to fraction form
    170,144.01/255,373.90 = 85,963.30/x
  3. Step 3: Cross multiply
    170,144.01x = 255,373.90 × 85,963.30
  4. Step 4: Simplify right side
    170,144.01x = 21,952,783,177.87
  5. Step 5: Solve for x
    x = 21,952,783,177.87/170,144.01
  6. Step 6: Final answer
    x = 129,024.72

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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.