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Finding the Fourth Proportional to 127,451.69, 175,896.75 and 73,008.20

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Solution

The fourth proportional to 127,451.69, 175,896.75 and 73,008.20 is: 100,759.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,451.69 : 175,896.75 = 73,008.20 : x
  2. Step 2: Convert to fraction form
    127,451.69/175,896.75 = 73,008.20/x
  3. Step 3: Cross multiply
    127,451.69x = 175,896.75 × 73,008.20
  4. Step 4: Simplify right side
    127,451.69x = 12,841,904,223.87
  5. Step 5: Solve for x
    x = 12,841,904,223.87/127,451.69
  6. Step 6: Final answer
    x = 100,759.00

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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.