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Finding the Fourth Proportional to 248,584.68, 372,920.85 and 91,033.20

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Solution

The fourth proportional to 248,584.68, 372,920.85 and 91,033.20 is: 136,565.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,584.68 : 372,920.85 = 91,033.20 : x
  2. Step 2: Convert to fraction form
    248,584.68/372,920.85 = 91,033.20/x
  3. Step 3: Cross multiply
    248,584.68x = 372,920.85 × 91,033.20
  4. Step 4: Simplify right side
    248,584.68x = 33,948,178,322.22
  5. Step 5: Solve for x
    x = 33,948,178,322.22/248,584.68
  6. Step 6: Final answer
    x = 136,565.85

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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.