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Finding the Fourth Proportional to 157,610.54, 217,515.42 and 89,648.77

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Solution

The fourth proportional to 157,610.54, 217,515.42 and 89,648.77 is: 123,722.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,610.54 : 217,515.42 = 89,648.77 : x
  2. Step 2: Convert to fraction form
    157,610.54/217,515.42 = 89,648.77/x
  3. Step 3: Cross multiply
    157,610.54x = 217,515.42 × 89,648.77
  4. Step 4: Simplify right side
    157,610.54x = 19,499,989,859.03
  5. Step 5: Solve for x
    x = 19,499,989,859.03/157,610.54
  6. Step 6: Final answer
    x = 123,722.63

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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.