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Finding the Fourth Proportional to 235,419.34, 324,882.22 and 127,989.13

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Solution

The fourth proportional to 235,419.34, 324,882.22 and 127,989.13 is: 176,626.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,419.34 : 324,882.22 = 127,989.13 : x
  2. Step 2: Convert to fraction form
    235,419.34/324,882.22 = 127,989.13/x
  3. Step 3: Cross multiply
    235,419.34x = 324,882.22 × 127,989.13
  4. Step 4: Simplify right side
    235,419.34x = 41,581,391,065.86
  5. Step 5: Solve for x
    x = 41,581,391,065.86/235,419.34
  6. Step 6: Final answer
    x = 176,626.92

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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.