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Finding the Fourth Proportional to 84,992.80, 127,537.80 and 58,716.40

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Solution

The fourth proportional to 84,992.80, 127,537.80 and 58,716.40 is: 88,108.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,992.80 : 127,537.80 = 58,716.40 : x
  2. Step 2: Convert to fraction form
    84,992.80/127,537.80 = 58,716.40/x
  3. Step 3: Cross multiply
    84,992.80x = 127,537.80 × 58,716.40
  4. Step 4: Simplify right side
    84,992.80x = 7,488,560,479.92
  5. Step 5: Solve for x
    x = 7,488,560,479.92/84,992.80
  6. Step 6: Final answer
    x = 88,108.17

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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.