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Finding the Fourth Proportional to 79,565.88, 109,801.68 and 43,756.14

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Solution

The fourth proportional to 79,565.88, 109,801.68 and 43,756.14 is: 60,383.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,565.88 : 109,801.68 = 43,756.14 : x
  2. Step 2: Convert to fraction form
    79,565.88/109,801.68 = 43,756.14/x
  3. Step 3: Cross multiply
    79,565.88x = 109,801.68 × 43,756.14
  4. Step 4: Simplify right side
    79,565.88x = 4,804,497,682.32
  5. Step 5: Solve for x
    x = 4,804,497,682.32/79,565.88
  6. Step 6: Final answer
    x = 60,383.89

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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.