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Finding the Fourth Proportional to 127,818.26, 176,389.86 and 73,355.78

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Solution

The fourth proportional to 127,818.26, 176,389.86 and 73,355.78 is: 101,231.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,818.26 : 176,389.86 = 73,355.78 : x
  2. Step 2: Convert to fraction form
    127,818.26/176,389.86 = 73,355.78/x
  3. Step 3: Cross multiply
    127,818.26x = 176,389.86 × 73,355.78
  4. Step 4: Simplify right side
    127,818.26x = 12,939,214,882.44
  5. Step 5: Solve for x
    x = 12,939,214,882.44/127,818.26
  6. Step 6: Final answer
    x = 101,231.35

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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.