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Finding the Fourth Proportional to 115,449.68, 173,033 and 65,571.70

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Solution

The fourth proportional to 115,449.68, 173,033 and 65,571.70 is: 98,277.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,449.68 : 173,033 = 65,571.70 : x
  2. Step 2: Convert to fraction form
    115,449.68/173,033 = 65,571.70/x
  3. Step 3: Cross multiply
    115,449.68x = 173,033 × 65,571.70
  4. Step 4: Simplify right side
    115,449.68x = 11,346,067,966.10
  5. Step 5: Solve for x
    x = 11,346,067,966.10/115,449.68
  6. Step 6: Final answer
    x = 98,277.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.