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Finding the Fourth Proportional to 110,393.16, 165,489.90 and 40,256.04

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Solution

The fourth proportional to 110,393.16, 165,489.90 and 40,256.04 is: 60,347.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,393.16 : 165,489.90 = 40,256.04 : x
  2. Step 2: Convert to fraction form
    110,393.16/165,489.90 = 40,256.04/x
  3. Step 3: Cross multiply
    110,393.16x = 165,489.90 × 40,256.04
  4. Step 4: Simplify right side
    110,393.16x = 6,661,968,034.00
  5. Step 5: Solve for x
    x = 6,661,968,034.00/110,393.16
  6. Step 6: Final answer
    x = 60,347.65

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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.