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Finding the Fourth Proportional to 163,297.73, 225,363.89 and 91,682.45

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Solution

The fourth proportional to 163,297.73, 225,363.89 and 91,682.45 is: 126,529.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,297.73 : 225,363.89 = 91,682.45 : x
  2. Step 2: Convert to fraction form
    163,297.73/225,363.89 = 91,682.45/x
  3. Step 3: Cross multiply
    163,297.73x = 225,363.89 × 91,682.45
  4. Step 4: Simplify right side
    163,297.73x = 20,661,913,118.32
  5. Step 5: Solve for x
    x = 20,661,913,118.32/163,297.73
  6. Step 6: Final answer
    x = 126,529.09

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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.