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Finding the Fourth Proportional to 157,273.92, 217,039.32 and 85,654.44

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Solution

The fourth proportional to 157,273.92, 217,039.32 and 85,654.44 is: 118,203.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,273.92 : 217,039.32 = 85,654.44 : x
  2. Step 2: Convert to fraction form
    157,273.92/217,039.32 = 85,654.44/x
  3. Step 3: Cross multiply
    157,273.92x = 217,039.32 × 85,654.44
  4. Step 4: Simplify right side
    157,273.92x = 18,590,381,412.58
  5. Step 5: Solve for x
    x = 18,590,381,412.58/157,273.92
  6. Step 6: Final answer
    x = 118,203.84

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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.