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Finding the Fourth Proportional to 235,300.70, 324,715.38 and 127,872.02

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Solution

The fourth proportional to 235,300.70, 324,715.38 and 127,872.02 is: 176,463.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,300.70 : 324,715.38 = 127,872.02 : x
  2. Step 2: Convert to fraction form
    235,300.70/324,715.38 = 127,872.02/x
  3. Step 3: Cross multiply
    235,300.70x = 324,715.38 × 127,872.02
  4. Step 4: Simplify right side
    235,300.70x = 41,522,011,565.67
  5. Step 5: Solve for x
    x = 41,522,011,565.67/235,300.70
  6. Step 6: Final answer
    x = 176,463.61

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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.