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Finding the Fourth Proportional to 79,462.01, 119,751.21 and 71,574.44

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Solution

The fourth proportional to 79,462.01, 119,751.21 and 71,574.44 is: 107,864.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,462.01 : 119,751.21 = 71,574.44 : x
  2. Step 2: Convert to fraction form
    79,462.01/119,751.21 = 71,574.44/x
  3. Step 3: Cross multiply
    79,462.01x = 119,751.21 × 71,574.44
  4. Step 4: Simplify right side
    79,462.01x = 8,571,125,196.32
  5. Step 5: Solve for x
    x = 8,571,125,196.32/79,462.01
  6. Step 6: Final answer
    x = 107,864.44

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.