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Finding the Fourth Proportional to 117,290.90, 175,909.36 and 69,919.37

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Solution

The fourth proportional to 117,290.90, 175,909.36 and 69,919.37 is: 104,862.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,290.90 : 175,909.36 = 69,919.37 : x
  2. Step 2: Convert to fraction form
    117,290.90/175,909.36 = 69,919.37/x
  3. Step 3: Cross multiply
    117,290.90x = 175,909.36 × 69,919.37
  4. Step 4: Simplify right side
    117,290.90x = 12,299,470,748.76
  5. Step 5: Solve for x
    x = 12,299,470,748.76/117,290.90
  6. Step 6: Final answer
    x = 104,862.96

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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.