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Finding the Fourth Proportional to 110,167.20, 165,218.40 and 43,585.20

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Solution

The fourth proportional to 110,167.20, 165,218.40 and 43,585.20 is: 65,364.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,167.20 : 165,218.40 = 43,585.20 : x
  2. Step 2: Convert to fraction form
    110,167.20/165,218.40 = 43,585.20/x
  3. Step 3: Cross multiply
    110,167.20x = 165,218.40 × 43,585.20
  4. Step 4: Simplify right side
    110,167.20x = 7,201,077,007.68
  5. Step 5: Solve for x
    x = 7,201,077,007.68/110,167.20
  6. Step 6: Final answer
    x = 65,364.98

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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.