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Finding the Fourth Proportional to 157,576.59, 217,448.55 and 85,954.16

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Solution

The fourth proportional to 157,576.59, 217,448.55 and 85,954.16 is: 118,612.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,576.59 : 217,448.55 = 85,954.16 : x
  2. Step 2: Convert to fraction form
    157,576.59/217,448.55 = 85,954.16/x
  3. Step 3: Cross multiply
    157,576.59x = 217,448.55 × 85,954.16
  4. Step 4: Simplify right side
    157,576.59x = 18,690,608,002.09
  5. Step 5: Solve for x
    x = 18,690,608,002.09/157,576.59
  6. Step 6: Final answer
    x = 118,612.85

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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.