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Finding the Fourth Proportional to 235,118.76, 324,462.72 and 127,687.92

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Solution

The fourth proportional to 235,118.76, 324,462.72 and 127,687.92 is: 176,208.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,118.76 : 324,462.72 = 127,687.92 : x
  2. Step 2: Convert to fraction form
    235,118.76/324,462.72 = 127,687.92/x
  3. Step 3: Cross multiply
    235,118.76x = 324,462.72 × 127,687.92
  4. Step 4: Simplify right side
    235,118.76x = 41,429,969,834.34
  5. Step 5: Solve for x
    x = 41,429,969,834.34/235,118.76
  6. Step 6: Final answer
    x = 176,208.69

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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.