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Finding the Fourth Proportional to 126,448.84, 174,502.94 and 69,863.88

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Solution

The fourth proportional to 126,448.84, 174,502.94 and 69,863.88 is: 96,414.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,448.84 : 174,502.94 = 69,863.88 : x
  2. Step 2: Convert to fraction form
    126,448.84/174,502.94 = 69,863.88/x
  3. Step 3: Cross multiply
    126,448.84x = 174,502.94 × 69,863.88
  4. Step 4: Simplify right side
    126,448.84x = 12,191,452,459.81
  5. Step 5: Solve for x
    x = 12,191,452,459.81/126,448.84
  6. Step 6: Final answer
    x = 96,414.11

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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.