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Finding the Fourth Proportional to 64,258.64, 88,679.70 and 35,578.31

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Solution

The fourth proportional to 64,258.64, 88,679.70 and 35,578.31 is: 49,099.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,258.64 : 88,679.70 = 35,578.31 : x
  2. Step 2: Convert to fraction form
    64,258.64/88,679.70 = 35,578.31/x
  3. Step 3: Cross multiply
    64,258.64x = 88,679.70 × 35,578.31
  4. Step 4: Simplify right side
    64,258.64x = 3,155,073,413.91
  5. Step 5: Solve for x
    x = 3,155,073,413.91/64,258.64
  6. Step 6: Final answer
    x = 49,099.60

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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.