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Finding the Fourth Proportional to 157,360.92, 217,151.99 and 85,741.49

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Solution

The fourth proportional to 157,360.92, 217,151.99 and 85,741.49 is: 118,319.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,360.92 : 217,151.99 = 85,741.49 : x
  2. Step 2: Convert to fraction form
    157,360.92/217,151.99 = 85,741.49/x
  3. Step 3: Cross multiply
    157,360.92x = 217,151.99 × 85,741.49
  4. Step 4: Simplify right side
    157,360.92x = 18,618,933,664.60
  5. Step 5: Solve for x
    x = 18,618,933,664.60/157,360.92
  6. Step 6: Final answer
    x = 118,319.93

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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.