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Finding the Fourth Proportional to 126,453.65, 174,491.10 and 75,456.92

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Solution

The fourth proportional to 126,453.65, 174,491.10 and 75,456.92 is: 104,121.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,453.65 : 174,491.10 = 75,456.92 : x
  2. Step 2: Convert to fraction form
    126,453.65/174,491.10 = 75,456.92/x
  3. Step 3: Cross multiply
    126,453.65x = 174,491.10 × 75,456.92
  4. Step 4: Simplify right side
    126,453.65x = 13,166,561,409.64
  5. Step 5: Solve for x
    x = 13,166,561,409.64/126,453.65
  6. Step 6: Final answer
    x = 104,121.64

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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.