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Finding the Fourth Proportional to 70,759.62, 106,140.51 and 18,167.94

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Solution

The fourth proportional to 70,759.62, 106,140.51 and 18,167.94 is: 27,252.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,759.62 : 106,140.51 = 18,167.94 : x
  2. Step 2: Convert to fraction form
    70,759.62/106,140.51 = 18,167.94/x
  3. Step 3: Cross multiply
    70,759.62x = 106,140.51 × 18,167.94
  4. Step 4: Simplify right side
    70,759.62x = 1,928,354,417.25
  5. Step 5: Solve for x
    x = 1,928,354,417.25/70,759.62
  6. Step 6: Final answer
    x = 27,252.19

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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.