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Finding the Fourth Proportional to 82,679.88, 124,019.88 and 35,907.24

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Solution

The fourth proportional to 82,679.88, 124,019.88 and 35,907.24 is: 53,860.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,679.88 : 124,019.88 = 35,907.24 : x
  2. Step 2: Convert to fraction form
    82,679.88/124,019.88 = 35,907.24/x
  3. Step 3: Cross multiply
    82,679.88x = 124,019.88 × 35,907.24
  4. Step 4: Simplify right side
    82,679.88x = 4,453,211,595.93
  5. Step 5: Solve for x
    x = 4,453,211,595.93/82,679.88
  6. Step 6: Final answer
    x = 53,860.89

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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.