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Finding the Fourth Proportional to 452,798.63, 679,221.20 and 115,842.20

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Solution

The fourth proportional to 452,798.63, 679,221.20 and 115,842.20 is: 173,769.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,798.63 : 679,221.20 = 115,842.20 : x
  2. Step 2: Convert to fraction form
    452,798.63/679,221.20 = 115,842.20/x
  3. Step 3: Cross multiply
    452,798.63x = 679,221.20 × 115,842.20
  4. Step 4: Simplify right side
    452,798.63x = 78,682,474,119.32
  5. Step 5: Solve for x
    x = 78,682,474,119.32/452,798.63
  6. Step 6: Final answer
    x = 173,769.24

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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.