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Finding the Fourth Proportional to 117,291.96, 175,910.95 and 69,920.43

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Solution

The fourth proportional to 117,291.96, 175,910.95 and 69,920.43 is: 104,864.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,291.96 : 175,910.95 = 69,920.43 : x
  2. Step 2: Convert to fraction form
    117,291.96/175,910.95 = 69,920.43/x
  3. Step 3: Cross multiply
    117,291.96x = 175,910.95 × 69,920.43
  4. Step 4: Simplify right side
    117,291.96x = 12,299,769,265.71
  5. Step 5: Solve for x
    x = 12,299,769,265.71/117,291.96
  6. Step 6: Final answer
    x = 104,864.56

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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.