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Finding the Fourth Proportional to 168,178.61, 232,088.31 and 91,697.09

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Solution

The fourth proportional to 168,178.61, 232,088.31 and 91,697.09 is: 126,542.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,178.61 : 232,088.31 = 91,697.09 : x
  2. Step 2: Convert to fraction form
    168,178.61/232,088.31 = 91,697.09/x
  3. Step 3: Cross multiply
    168,178.61x = 232,088.31 × 91,697.09
  4. Step 4: Simplify right side
    168,178.61x = 21,281,821,489.58
  5. Step 5: Solve for x
    x = 21,281,821,489.58/168,178.61
  6. Step 6: Final answer
    x = 126,542.97

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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.