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Finding the Fourth Proportional to 78,596.81, 108,478.55 and 44,608.49

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Solution

The fourth proportional to 78,596.81, 108,478.55 and 44,608.49 is: 61,568.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,596.81 : 108,478.55 = 44,608.49 : x
  2. Step 2: Convert to fraction form
    78,596.81/108,478.55 = 44,608.49/x
  3. Step 3: Cross multiply
    78,596.81x = 108,478.55 × 44,608.49
  4. Step 4: Simplify right side
    78,596.81x = 4,839,064,288.81
  5. Step 5: Solve for x
    x = 4,839,064,288.81/78,596.81
  6. Step 6: Final answer
    x = 61,568.20

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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.