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Finding the Fourth Proportional to 235,097.70, 324,433.80 and 127,666.86

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Solution

The fourth proportional to 235,097.70, 324,433.80 and 127,666.86 is: 176,179.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,097.70 : 324,433.80 = 127,666.86 : x
  2. Step 2: Convert to fraction form
    235,097.70/324,433.80 = 127,666.86/x
  3. Step 3: Cross multiply
    235,097.70x = 324,433.80 × 127,666.86
  4. Step 4: Simplify right side
    235,097.70x = 41,419,444,523.87
  5. Step 5: Solve for x
    x = 41,419,444,523.87/235,097.70
  6. Step 6: Final answer
    x = 176,179.71

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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.