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Finding the Fourth Proportional to 157,576.32, 217,450.56 and 85,957.44

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Solution

The fourth proportional to 157,576.32, 217,450.56 and 85,957.44 is: 118,618.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,576.32 : 217,450.56 = 85,957.44 : x
  2. Step 2: Convert to fraction form
    157,576.32/217,450.56 = 85,957.44/x
  3. Step 3: Cross multiply
    157,576.32x = 217,450.56 × 85,957.44
  4. Step 4: Simplify right side
    157,576.32x = 18,691,493,464.17
  5. Step 5: Solve for x
    x = 18,691,493,464.17/157,576.32
  6. Step 6: Final answer
    x = 118,618.67

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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.