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Finding the Fourth Proportional to 83,340.45, 114,981.23 and 47,504.61

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Solution

The fourth proportional to 83,340.45, 114,981.23 and 47,504.61 is: 65,540.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,340.45 : 114,981.23 = 47,504.61 : x
  2. Step 2: Convert to fraction form
    83,340.45/114,981.23 = 47,504.61/x
  3. Step 3: Cross multiply
    83,340.45x = 114,981.23 × 47,504.61
  4. Step 4: Simplify right side
    83,340.45x = 5,462,138,250.95
  5. Step 5: Solve for x
    x = 5,462,138,250.95/83,340.45
  6. Step 6: Final answer
    x = 65,540.06

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1.5x scale

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.