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Finding the Fourth Proportional to 117,290.96, 175,909.46 and 69,919.43

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Solution

The fourth proportional to 117,290.96, 175,909.46 and 69,919.43 is: 104,863.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,290.96 : 175,909.46 = 69,919.43 : x
  2. Step 2: Convert to fraction form
    117,290.96/175,909.46 = 69,919.43/x
  3. Step 3: Cross multiply
    117,290.96x = 175,909.46 × 69,919.43
  4. Step 4: Simplify right side
    117,290.96x = 12,299,487,945.66
  5. Step 5: Solve for x
    x = 12,299,487,945.66/117,290.96
  6. Step 6: Final answer
    x = 104,863.05

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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.