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Finding the Fourth Proportional to 69,258.32, 103,887.48 and 53,861.84

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Solution

The fourth proportional to 69,258.32, 103,887.48 and 53,861.84 is: 80,792.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,258.32 : 103,887.48 = 53,861.84 : x
  2. Step 2: Convert to fraction form
    69,258.32/103,887.48 = 53,861.84/x
  3. Step 3: Cross multiply
    69,258.32x = 103,887.48 × 53,861.84
  4. Step 4: Simplify right side
    69,258.32x = 5,595,570,825.76
  5. Step 5: Solve for x
    x = 5,595,570,825.76/69,258.32
  6. Step 6: Final answer
    x = 80,792.76

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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.