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Finding the Fourth Proportional to 110,412.60, 165,621.60 and 40,291.89

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Solution

The fourth proportional to 110,412.60, 165,621.60 and 40,291.89 is: 60,438.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,412.60 : 165,621.60 = 40,291.89 : x
  2. Step 2: Convert to fraction form
    110,412.60/165,621.60 = 40,291.89/x
  3. Step 3: Cross multiply
    110,412.60x = 165,621.60 × 40,291.89
  4. Step 4: Simplify right side
    110,412.60x = 6,673,207,288.82
  5. Step 5: Solve for x
    x = 6,673,207,288.82/110,412.60
  6. Step 6: Final answer
    x = 60,438.82

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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.