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Finding the Fourth Proportional to 168,172.80, 232,078.08 and 92,722.56

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Solution

The fourth proportional to 168,172.80, 232,078.08 and 92,722.56 is: 127,956.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,172.80 : 232,078.08 = 92,722.56 : x
  2. Step 2: Convert to fraction form
    168,172.80/232,078.08 = 92,722.56/x
  3. Step 3: Cross multiply
    168,172.80x = 232,078.08 × 92,722.56
  4. Step 4: Simplify right side
    168,172.80x = 21,518,873,697.48
  5. Step 5: Solve for x
    x = 21,518,873,697.48/168,172.80
  6. Step 6: Final answer
    x = 127,956.92

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1.5x scale

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.