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Finding the Fourth Proportional to 65,465.62, 90,318.45 and 44,211.22

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Solution

The fourth proportional to 65,465.62, 90,318.45 and 44,211.22 is: 60,995.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,465.62 : 90,318.45 = 44,211.22 : x
  2. Step 2: Convert to fraction form
    65,465.62/90,318.45 = 44,211.22/x
  3. Step 3: Cross multiply
    65,465.62x = 90,318.45 × 44,211.22
  4. Step 4: Simplify right side
    65,465.62x = 3,993,088,863.01
  5. Step 5: Solve for x
    x = 3,993,088,863.01/65,465.62
  6. Step 6: Final answer
    x = 60,995.20

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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.