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Finding the Fourth Proportional to 127,081.99, 175,366.79 and 73,363.80

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Solution

The fourth proportional to 127,081.99, 175,366.79 and 73,363.80 is: 101,238.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,081.99 : 175,366.79 = 73,363.80 : x
  2. Step 2: Convert to fraction form
    127,081.99/175,366.79 = 73,363.80/x
  3. Step 3: Cross multiply
    127,081.99x = 175,366.79 × 73,363.80
  4. Step 4: Simplify right side
    127,081.99x = 12,865,574,674.12
  5. Step 5: Solve for x
    x = 12,865,574,674.12/127,081.99
  6. Step 6: Final answer
    x = 101,238.38

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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.