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Finding the Fourth Proportional to 157,588.56, 217,472.12 and 85,968.42

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Solution

The fourth proportional to 157,588.56, 217,472.12 and 85,968.42 is: 118,636.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,588.56 : 217,472.12 = 85,968.42 : x
  2. Step 2: Convert to fraction form
    157,588.56/217,472.12 = 85,968.42/x
  3. Step 3: Cross multiply
    157,588.56x = 217,472.12 × 85,968.42
  4. Step 4: Simplify right side
    157,588.56x = 18,695,734,550.45
  5. Step 5: Solve for x
    x = 18,695,734,550.45/157,588.56
  6. Step 6: Final answer
    x = 118,636.37

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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.