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Finding the Fourth Proportional to 65,393.87, 90,270.96 and 44,201.84

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Solution

The fourth proportional to 65,393.87, 90,270.96 and 44,201.84 is: 61,017.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,393.87 : 90,270.96 = 44,201.84 : x
  2. Step 2: Convert to fraction form
    65,393.87/90,270.96 = 44,201.84/x
  3. Step 3: Cross multiply
    65,393.87x = 90,270.96 × 44,201.84
  4. Step 4: Simplify right side
    65,393.87x = 3,990,141,913.45
  5. Step 5: Solve for x
    x = 3,990,141,913.45/65,393.87
  6. Step 6: Final answer
    x = 61,017.07

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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.