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Finding the Fourth Proportional to 89,299.62, 123,214.23 and 51,552

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Solution

The fourth proportional to 89,299.62, 123,214.23 and 51,552 is: 71,130.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,299.62 : 123,214.23 = 51,552 : x
  2. Step 2: Convert to fraction form
    89,299.62/123,214.23 = 51,552/x
  3. Step 3: Cross multiply
    89,299.62x = 123,214.23 × 51,552
  4. Step 4: Simplify right side
    89,299.62x = 6,351,939,984.96
  5. Step 5: Solve for x
    x = 6,351,939,984.96/89,299.62
  6. Step 6: Final answer
    x = 71,130.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.