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Finding the Fourth Proportional to 83,888.17, 115,770.66 and 48,080.49

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Solution

The fourth proportional to 83,888.17, 115,770.66 and 48,080.49 is: 66,353.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,888.17 : 115,770.66 = 48,080.49 : x
  2. Step 2: Convert to fraction form
    83,888.17/115,770.66 = 48,080.49/x
  3. Step 3: Cross multiply
    83,888.17x = 115,770.66 × 48,080.49
  4. Step 4: Simplify right side
    83,888.17x = 5,566,310,558.02
  5. Step 5: Solve for x
    x = 5,566,310,558.02/83,888.17
  6. Step 6: Final answer
    x = 66,353.94

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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.