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Finding the Fourth Proportional to 115,952.88, 159,986.16 and 73,495.92

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Solution

The fourth proportional to 115,952.88, 159,986.16 and 73,495.92 is: 101,406.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,952.88 : 159,986.16 = 73,495.92 : x
  2. Step 2: Convert to fraction form
    115,952.88/159,986.16 = 73,495.92/x
  3. Step 3: Cross multiply
    115,952.88x = 159,986.16 × 73,495.92
  4. Step 4: Simplify right side
    115,952.88x = 11,758,330,016.47
  5. Step 5: Solve for x
    x = 11,758,330,016.47/115,952.88
  6. Step 6: Final answer
    x = 101,406.11

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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.