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Finding the Fourth Proportional to 83,268.63, 124,943.96 and 38,898.50

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Solution

The fourth proportional to 83,268.63, 124,943.96 and 38,898.50 is: 58,366.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,268.63 : 124,943.96 = 38,898.50 : x
  2. Step 2: Convert to fraction form
    83,268.63/124,943.96 = 38,898.50/x
  3. Step 3: Cross multiply
    83,268.63x = 124,943.96 × 38,898.50
  4. Step 4: Simplify right side
    83,268.63x = 4,860,131,808.85
  5. Step 5: Solve for x
    x = 4,860,131,808.85/83,268.63
  6. Step 6: Final answer
    x = 58,366.90

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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.