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Finding the Fourth Proportional to 235,155.97, 324,517.62 and 127,728.10

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Solution

The fourth proportional to 235,155.97, 324,517.62 and 127,728.10 is: 176,266.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,155.97 : 324,517.62 = 127,728.10 : x
  2. Step 2: Convert to fraction form
    235,155.97/324,517.62 = 127,728.10/x
  3. Step 3: Cross multiply
    235,155.97x = 324,517.62 × 127,728.10
  4. Step 4: Simplify right side
    235,155.97x = 41,450,019,019.12
  5. Step 5: Solve for x
    x = 41,450,019,019.12/235,155.97
  6. Step 6: Final answer
    x = 176,266.07

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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.