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Finding the Fourth Proportional to 55,054.80, 75,987.72 and 36,193.68

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Solution

The fourth proportional to 55,054.80, 75,987.72 and 36,193.68 is: 49,955.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,054.80 : 75,987.72 = 36,193.68 : x
  2. Step 2: Convert to fraction form
    55,054.80/75,987.72 = 36,193.68/x
  3. Step 3: Cross multiply
    55,054.80x = 75,987.72 × 36,193.68
  4. Step 4: Simplify right side
    55,054.80x = 2,750,275,221.61
  5. Step 5: Solve for x
    x = 2,750,275,221.61/55,054.80
  6. Step 6: Final answer
    x = 49,955.23

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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.