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Finding the Fourth Proportional to 98,952.92, 136,561.62 and 55,917.48

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Solution

The fourth proportional to 98,952.92, 136,561.62 and 55,917.48 is: 77,169.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,952.92 : 136,561.62 = 55,917.48 : x
  2. Step 2: Convert to fraction form
    98,952.92/136,561.62 = 55,917.48/x
  3. Step 3: Cross multiply
    98,952.92x = 136,561.62 × 55,917.48
  4. Step 4: Simplify right side
    98,952.92x = 7,636,181,655.12
  5. Step 5: Solve for x
    x = 7,636,181,655.12/98,952.92
  6. Step 6: Final answer
    x = 77,169.85

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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.