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Finding the Fourth Proportional to 79,525.02, 109,698.72 and 47,675.40

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Solution

The fourth proportional to 79,525.02, 109,698.72 and 47,675.40 is: 65,764.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,525.02 : 109,698.72 = 47,675.40 : x
  2. Step 2: Convert to fraction form
    79,525.02/109,698.72 = 47,675.40/x
  3. Step 3: Cross multiply
    79,525.02x = 109,698.72 × 47,675.40
  4. Step 4: Simplify right side
    79,525.02x = 5,229,930,355.49
  5. Step 5: Solve for x
    x = 5,229,930,355.49/79,525.02
  6. Step 6: Final answer
    x = 65,764.59

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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.