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Finding the Fourth Proportional to 97,730.72, 146,578.80 and 27,591.20

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Solution

The fourth proportional to 97,730.72, 146,578.80 and 27,591.20 is: 41,381.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,730.72 : 146,578.80 = 27,591.20 : x
  2. Step 2: Convert to fraction form
    97,730.72/146,578.80 = 27,591.20/x
  3. Step 3: Cross multiply
    97,730.72x = 146,578.80 × 27,591.20
  4. Step 4: Simplify right side
    97,730.72x = 4,044,284,986.56
  5. Step 5: Solve for x
    x = 4,044,284,986.56/97,730.72
  6. Step 6: Final answer
    x = 41,381.92

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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.