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Finding the Fourth Proportional to 79,507.60, 109,722.50 and 43,698.52

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Solution

The fourth proportional to 79,507.60, 109,722.50 and 43,698.52 is: 60,305.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,507.60 : 109,722.50 = 43,698.52 : x
  2. Step 2: Convert to fraction form
    79,507.60/109,722.50 = 43,698.52/x
  3. Step 3: Cross multiply
    79,507.60x = 109,722.50 × 43,698.52
  4. Step 4: Simplify right side
    79,507.60x = 4,794,710,860.70
  5. Step 5: Solve for x
    x = 4,794,710,860.70/79,507.60
  6. Step 6: Final answer
    x = 60,305.06

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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.