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Finding the Fourth Proportional to 165,002.80, 247,066.80 and 130,010.80

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Solution

The fourth proportional to 165,002.80, 247,066.80 and 130,010.80 is: 194,671.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,002.80 : 247,066.80 = 130,010.80 : x
  2. Step 2: Convert to fraction form
    165,002.80/247,066.80 = 130,010.80/x
  3. Step 3: Cross multiply
    165,002.80x = 247,066.80 × 130,010.80
  4. Step 4: Simplify right side
    165,002.80x = 32,121,352,321.44
  5. Step 5: Solve for x
    x = 32,121,352,321.44/165,002.80
  6. Step 6: Final answer
    x = 194,671.56

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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.