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Finding the Fourth Proportional to 60,641.25, 90,851.05 and 43,959.91

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Solution

The fourth proportional to 60,641.25, 90,851.05 and 43,959.91 is: 65,859.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,641.25 : 90,851.05 = 43,959.91 : x
  2. Step 2: Convert to fraction form
    60,641.25/90,851.05 = 43,959.91/x
  3. Step 3: Cross multiply
    60,641.25x = 90,851.05 × 43,959.91
  4. Step 4: Simplify right side
    60,641.25x = 3,993,803,981.41
  5. Step 5: Solve for x
    x = 3,993,803,981.41/60,641.25
  6. Step 6: Final answer
    x = 65,859.53

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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.