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Finding the Fourth Proportional to 234,416.81, 323,496.19 and 126,986.84

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Solution

The fourth proportional to 234,416.81, 323,496.19 and 126,986.84 is: 175,242.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,416.81 : 323,496.19 = 126,986.84 : x
  2. Step 2: Convert to fraction form
    234,416.81/323,496.19 = 126,986.84/x
  3. Step 3: Cross multiply
    234,416.81x = 323,496.19 × 126,986.84
  4. Step 4: Simplify right side
    234,416.81x = 41,079,758,920.14
  5. Step 5: Solve for x
    x = 41,079,758,920.14/234,416.81
  6. Step 6: Final answer
    x = 175,242.38

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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.