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Finding the Fourth Proportional to 84,835.30, 127,058.55 and 82,891.30

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Solution

The fourth proportional to 84,835.30, 127,058.55 and 82,891.30 is: 124,147.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,835.30 : 127,058.55 = 82,891.30 : x
  2. Step 2: Convert to fraction form
    84,835.30/127,058.55 = 82,891.30/x
  3. Step 3: Cross multiply
    84,835.30x = 127,058.55 × 82,891.30
  4. Step 4: Simplify right side
    84,835.30x = 10,532,048,385.62
  5. Step 5: Solve for x
    x = 10,532,048,385.62/84,835.30
  6. Step 6: Final answer
    x = 124,147.00

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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.