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Finding the Fourth Proportional to 79,268.74, 109,402.01 and 49,063.74

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Solution

The fourth proportional to 79,268.74, 109,402.01 and 49,063.74 is: 67,714.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,268.74 : 109,402.01 = 49,063.74 : x
  2. Step 2: Convert to fraction form
    79,268.74/109,402.01 = 49,063.74/x
  3. Step 3: Cross multiply
    79,268.74x = 109,402.01 × 49,063.74
  4. Step 4: Simplify right side
    79,268.74x = 5,367,671,774.12
  5. Step 5: Solve for x
    x = 5,367,671,774.12/79,268.74
  6. Step 6: Final answer
    x = 67,714.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.