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Finding the Fourth Proportional to 157,144.96, 216,855.90 and 85,523.44

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Solution

The fourth proportional to 157,144.96, 216,855.90 and 85,523.44 is: 118,020.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,144.96 : 216,855.90 = 85,523.44 : x
  2. Step 2: Convert to fraction form
    157,144.96/216,855.90 = 85,523.44/x
  3. Step 3: Cross multiply
    157,144.96x = 216,855.90 × 85,523.44
  4. Step 4: Simplify right side
    157,144.96x = 18,546,262,552.30
  5. Step 5: Solve for x
    x = 18,546,262,552.30/157,144.96
  6. Step 6: Final answer
    x = 118,020.09

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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.