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Finding the Fourth Proportional to 157,441.34, 217,261.19 and 89,449.34

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Solution

The fourth proportional to 157,441.34, 217,261.19 and 89,449.34 is: 123,435.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,441.34 : 217,261.19 = 89,449.34 : x
  2. Step 2: Convert to fraction form
    157,441.34/217,261.19 = 89,449.34/x
  3. Step 3: Cross multiply
    157,441.34x = 217,261.19 × 89,449.34
  4. Step 4: Simplify right side
    157,441.34x = 19,433,869,190.43
  5. Step 5: Solve for x
    x = 19,433,869,190.43/157,441.34
  6. Step 6: Final answer
    x = 123,435.62

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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.