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Finding the Fourth Proportional to 60,369.66, 90,469.98 and 51,438.42

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Solution

The fourth proportional to 60,369.66, 90,469.98 and 51,438.42 is: 77,085.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,369.66 : 90,469.98 = 51,438.42 : x
  2. Step 2: Convert to fraction form
    60,369.66/90,469.98 = 51,438.42/x
  3. Step 3: Cross multiply
    60,369.66x = 90,469.98 × 51,438.42
  4. Step 4: Simplify right side
    60,369.66x = 4,653,632,828.63
  5. Step 5: Solve for x
    x = 4,653,632,828.63/60,369.66
  6. Step 6: Final answer
    x = 77,085.62

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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.