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Finding the Fourth Proportional to 110,114.61, 165,151.80 and 50,128.89

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Solution

The fourth proportional to 110,114.61, 165,151.80 and 50,128.89 is: 75,184.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,114.61 : 165,151.80 = 50,128.89 : x
  2. Step 2: Convert to fraction form
    110,114.61/165,151.80 = 50,128.89/x
  3. Step 3: Cross multiply
    110,114.61x = 165,151.80 × 50,128.89
  4. Step 4: Simplify right side
    110,114.61x = 8,278,876,415.50
  5. Step 5: Solve for x
    x = 8,278,876,415.50/110,114.61
  6. Step 6: Final answer
    x = 75,184.18

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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.