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Finding the Fourth Proportional to 55,403.88, 83,152.31 and 28,766.22

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Solution

The fourth proportional to 55,403.88, 83,152.31 and 28,766.22 is: 43,173.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,403.88 : 83,152.31 = 28,766.22 : x
  2. Step 2: Convert to fraction form
    55,403.88/83,152.31 = 28,766.22/x
  3. Step 3: Cross multiply
    55,403.88x = 83,152.31 × 28,766.22
  4. Step 4: Simplify right side
    55,403.88x = 2,391,977,642.97
  5. Step 5: Solve for x
    x = 2,391,977,642.97/55,403.88
  6. Step 6: Final answer
    x = 43,173.47

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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.