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Finding the Fourth Proportional to 61,679.73, 92,422.68 and 47,674.05

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Solution

The fourth proportional to 61,679.73, 92,422.68 and 47,674.05 is: 71,436.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,679.73 : 92,422.68 = 47,674.05 : x
  2. Step 2: Convert to fraction form
    61,679.73/92,422.68 = 47,674.05/x
  3. Step 3: Cross multiply
    61,679.73x = 92,422.68 × 47,674.05
  4. Step 4: Simplify right side
    61,679.73x = 4,406,163,467.45
  5. Step 5: Solve for x
    x = 4,406,163,467.45/61,679.73
  6. Step 6: Final answer
    x = 71,436.17

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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.