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Finding the Fourth Proportional to 157,353.17, 217,144.62 and 85,733.71

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Solution

The fourth proportional to 157,353.17, 217,144.62 and 85,733.71 is: 118,311.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,353.17 : 217,144.62 = 85,733.71 : x
  2. Step 2: Convert to fraction form
    157,353.17/217,144.62 = 85,733.71/x
  3. Step 3: Cross multiply
    157,353.17x = 217,144.62 × 85,733.71
  4. Step 4: Simplify right side
    157,353.17x = 18,616,613,879.14
  5. Step 5: Solve for x
    x = 18,616,613,879.14/157,353.17
  6. Step 6: Final answer
    x = 118,311.02

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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.