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Finding the Fourth Proportional to 79,644, 119,268.84 and 46,262.88

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Solution

The fourth proportional to 79,644, 119,268.84 and 46,262.88 is: 69,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,644 : 119,268.84 = 46,262.88 : x
  2. Step 2: Convert to fraction form
    79,644/119,268.84 = 46,262.88/x
  3. Step 3: Cross multiply
    79,644x = 119,268.84 × 46,262.88
  4. Step 4: Simplify right side
    79,644x = 5,517,720,032.66
  5. Step 5: Solve for x
    x = 5,517,720,032.66/79,644
  6. Step 6: Final answer
    x = 69,279.80

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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.