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Finding the Fourth Proportional to 235,136.76, 324,491.10 and 127,708.89

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Solution

The fourth proportional to 235,136.76, 324,491.10 and 127,708.89 is: 176,239.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,136.76 : 324,491.10 = 127,708.89 : x
  2. Step 2: Convert to fraction form
    235,136.76/324,491.10 = 127,708.89/x
  3. Step 3: Cross multiply
    235,136.76x = 324,491.10 × 127,708.89
  4. Step 4: Simplify right side
    235,136.76x = 41,440,398,195.88
  5. Step 5: Solve for x
    x = 41,440,398,195.88/235,136.76
  6. Step 6: Final answer
    x = 176,239.56

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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.