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Finding the Fourth Proportional to 192,372.16, 288,529.08 and 67,684

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Solution

The fourth proportional to 192,372.16, 288,529.08 and 67,684 is: 101,515.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,372.16 : 288,529.08 = 67,684 : x
  2. Step 2: Convert to fraction form
    192,372.16/288,529.08 = 67,684/x
  3. Step 3: Cross multiply
    192,372.16x = 288,529.08 × 67,684
  4. Step 4: Simplify right side
    192,372.16x = 19,528,802,250.72
  5. Step 5: Solve for x
    x = 19,528,802,250.72/192,372.16
  6. Step 6: Final answer
    x = 101,515.74

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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.