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Finding the Fourth Proportional to 79,765.02, 119,701.80 and 33,018.30

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Solution

The fourth proportional to 79,765.02, 119,701.80 and 33,018.30 is: 49,549.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,765.02 : 119,701.80 = 33,018.30 : x
  2. Step 2: Convert to fraction form
    79,765.02/119,701.80 = 33,018.30/x
  3. Step 3: Cross multiply
    79,765.02x = 119,701.80 × 33,018.30
  4. Step 4: Simplify right side
    79,765.02x = 3,952,349,942.94
  5. Step 5: Solve for x
    x = 3,952,349,942.94/79,765.02
  6. Step 6: Final answer
    x = 49,549.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.