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Finding the Fourth Proportional to 78,657.57, 108,549.26 and 44,660.66

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Solution

The fourth proportional to 78,657.57, 108,549.26 and 44,660.66 is: 61,632.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,657.57 : 108,549.26 = 44,660.66 : x
  2. Step 2: Convert to fraction form
    78,657.57/108,549.26 = 44,660.66/x
  3. Step 3: Cross multiply
    78,657.57x = 108,549.26 × 44,660.66
  4. Step 4: Simplify right side
    78,657.57x = 4,847,880,828.06
  5. Step 5: Solve for x
    x = 4,847,880,828.06/78,657.57
  6. Step 6: Final answer
    x = 61,632.73

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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.