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Finding the Fourth Proportional to 60,884.88, 83,920.74 and 40,734.54

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Solution

The fourth proportional to 60,884.88, 83,920.74 and 40,734.54 is: 56,146.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,884.88 : 83,920.74 = 40,734.54 : x
  2. Step 2: Convert to fraction form
    60,884.88/83,920.74 = 40,734.54/x
  3. Step 3: Cross multiply
    60,884.88x = 83,920.74 × 40,734.54
  4. Step 4: Simplify right side
    60,884.88x = 3,418,472,740.36
  5. Step 5: Solve for x
    x = 3,418,472,740.36/60,884.88
  6. Step 6: Final answer
    x = 56,146.50

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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.