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Finding the Fourth Proportional to 192,652.20, 288,611.10 and 103,876.20

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Solution

The fourth proportional to 192,652.20, 288,611.10 and 103,876.20 is: 155,616.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,652.20 : 288,611.10 = 103,876.20 : x
  2. Step 2: Convert to fraction form
    192,652.20/288,611.10 = 103,876.20/x
  3. Step 3: Cross multiply
    192,652.20x = 288,611.10 × 103,876.20
  4. Step 4: Simplify right side
    192,652.20x = 29,979,824,345.82
  5. Step 5: Solve for x
    x = 29,979,824,345.82/192,652.20
  6. Step 6: Final answer
    x = 155,616.31

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1.5x scale

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.