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Finding the Fourth Proportional to 193,297.32, 266,763.66 and 108,419.88

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Solution

The fourth proportional to 193,297.32, 266,763.66 and 108,419.88 is: 149,626.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,297.32 : 266,763.66 = 108,419.88 : x
  2. Step 2: Convert to fraction form
    193,297.32/266,763.66 = 108,419.88/x
  3. Step 3: Cross multiply
    193,297.32x = 266,763.66 × 108,419.88
  4. Step 4: Simplify right side
    193,297.32x = 28,922,484,005.56
  5. Step 5: Solve for x
    x = 28,922,484,005.56/193,297.32
  6. Step 6: Final answer
    x = 149,626.93

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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.