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Finding the Fourth Proportional to 64,680.54, 89,170.08 and 44,258.82

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Solution

The fourth proportional to 64,680.54, 89,170.08 and 44,258.82 is: 61,016.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,680.54 : 89,170.08 = 44,258.82 : x
  2. Step 2: Convert to fraction form
    64,680.54/89,170.08 = 44,258.82/x
  3. Step 3: Cross multiply
    64,680.54x = 89,170.08 × 44,258.82
  4. Step 4: Simplify right side
    64,680.54x = 3,946,562,520.11
  5. Step 5: Solve for x
    x = 3,946,562,520.11/64,680.54
  6. Step 6: Final answer
    x = 61,016.23

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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.