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Finding the Fourth Proportional to 146,616, 202,331.16 and 79,548

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Solution

The fourth proportional to 146,616, 202,331.16 and 79,548 is: 109,776.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,616 : 202,331.16 = 79,548 : x
  2. Step 2: Convert to fraction form
    146,616/202,331.16 = 79,548/x
  3. Step 3: Cross multiply
    146,616x = 202,331.16 × 79,548
  4. Step 4: Simplify right side
    146,616x = 16,095,039,115.68
  5. Step 5: Solve for x
    x = 16,095,039,115.68/146,616
  6. Step 6: Final answer
    x = 109,776.83

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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.