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Finding the Fourth Proportional to 72,462.62, 99,963.99 and 48,274.83

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Solution

The fourth proportional to 72,462.62, 99,963.99 and 48,274.83 is: 66,596.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,462.62 : 99,963.99 = 48,274.83 : x
  2. Step 2: Convert to fraction form
    72,462.62/99,963.99 = 48,274.83/x
  3. Step 3: Cross multiply
    72,462.62x = 99,963.99 × 48,274.83
  4. Step 4: Simplify right side
    72,462.62x = 4,825,744,623.37
  5. Step 5: Solve for x
    x = 4,825,744,623.37/72,462.62
  6. Step 6: Final answer
    x = 66,596.33

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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.