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Finding the Fourth Proportional to 110,470.40, 165,770.40 and 40,356.80

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Solution

The fourth proportional to 110,470.40, 165,770.40 and 40,356.80 is: 60,558.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,470.40 : 165,770.40 = 40,356.80 : x
  2. Step 2: Convert to fraction form
    110,470.40/165,770.40 = 40,356.80/x
  3. Step 3: Cross multiply
    110,470.40x = 165,770.40 × 40,356.80
  4. Step 4: Simplify right side
    110,470.40x = 6,689,962,878.72
  5. Step 5: Solve for x
    x = 6,689,962,878.72/110,470.40
  6. Step 6: Final answer
    x = 60,558.87

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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.