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Finding the Fourth Proportional to 83,315.52, 124,973.28 and 36,568.80

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Solution

The fourth proportional to 83,315.52, 124,973.28 and 36,568.80 is: 54,853.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,315.52 : 124,973.28 = 36,568.80 : x
  2. Step 2: Convert to fraction form
    83,315.52/124,973.28 = 36,568.80/x
  3. Step 3: Cross multiply
    83,315.52x = 124,973.28 × 36,568.80
  4. Step 4: Simplify right side
    83,315.52x = 4,570,122,881.66
  5. Step 5: Solve for x
    x = 4,570,122,881.66/83,315.52
  6. Step 6: Final answer
    x = 54,853.20

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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.