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Finding the Fourth Proportional to 235,414.29, 324,878.13 and 127,991.73

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Solution

The fourth proportional to 235,414.29, 324,878.13 and 127,991.73 is: 176,632.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,414.29 : 324,878.13 = 127,991.73 : x
  2. Step 2: Convert to fraction form
    235,414.29/324,878.13 = 127,991.73/x
  3. Step 3: Cross multiply
    235,414.29x = 324,878.13 × 127,991.73
  4. Step 4: Simplify right side
    235,414.29x = 41,581,713,897.86
  5. Step 5: Solve for x
    x = 41,581,713,897.86/235,414.29
  6. Step 6: Final answer
    x = 176,632.07

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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.