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Finding the Fourth Proportional to 235,311.69, 324,732.16 and 127,881.70

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Solution

The fourth proportional to 235,311.69, 324,732.16 and 127,881.70 is: 176,477.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,311.69 : 324,732.16 = 127,881.70 : x
  2. Step 2: Convert to fraction form
    235,311.69/324,732.16 = 127,881.70/x
  3. Step 3: Cross multiply
    235,311.69x = 324,732.16 × 127,881.70
  4. Step 4: Simplify right side
    235,311.69x = 41,527,300,665.47
  5. Step 5: Solve for x
    x = 41,527,300,665.47/235,311.69
  6. Step 6: Final answer
    x = 176,477.85

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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.