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Finding the Fourth Proportional to 233,920.39, 322,812.06 and 129,147.71

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Solution

The fourth proportional to 233,920.39, 322,812.06 and 129,147.71 is: 178,224.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,920.39 : 322,812.06 = 129,147.71 : x
  2. Step 2: Convert to fraction form
    233,920.39/322,812.06 = 129,147.71/x
  3. Step 3: Cross multiply
    233,920.39x = 322,812.06 × 129,147.71
  4. Step 4: Simplify right side
    233,920.39x = 41,690,438,027.00
  5. Step 5: Solve for x
    x = 41,690,438,027.00/233,920.39
  6. Step 6: Final answer
    x = 178,224.90

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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.