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Finding the Fourth Proportional to 83,343.46, 124,959.48 and 45,921.46

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Solution

The fourth proportional to 83,343.46, 124,959.48 and 45,921.46 is: 68,851.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,343.46 : 124,959.48 = 45,921.46 : x
  2. Step 2: Convert to fraction form
    83,343.46/124,959.48 = 45,921.46/x
  3. Step 3: Cross multiply
    83,343.46x = 124,959.48 × 45,921.46
  4. Step 4: Simplify right side
    83,343.46x = 5,738,321,762.44
  5. Step 5: Solve for x
    x = 5,738,321,762.44/83,343.46
  6. Step 6: Final answer
    x = 68,851.49

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1.5x scale

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.