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Finding the Fourth Proportional to 126,718.65, 174,828.99 and 73,002.27

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Solution

The fourth proportional to 126,718.65, 174,828.99 and 73,002.27 is: 100,718.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,718.65 : 174,828.99 = 73,002.27 : x
  2. Step 2: Convert to fraction form
    126,718.65/174,828.99 = 73,002.27/x
  3. Step 3: Cross multiply
    126,718.65x = 174,828.99 × 73,002.27
  4. Step 4: Simplify right side
    126,718.65x = 12,762,913,131.81
  5. Step 5: Solve for x
    x = 12,762,913,131.81/126,718.65
  6. Step 6: Final answer
    x = 100,718.51

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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.