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Finding the Fourth Proportional to 104,628.69, 144,131.31 and 75,863.84

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Solution

The fourth proportional to 104,628.69, 144,131.31 and 75,863.84 is: 104,506.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,628.69 : 144,131.31 = 75,863.84 : x
  2. Step 2: Convert to fraction form
    104,628.69/144,131.31 = 75,863.84/x
  3. Step 3: Cross multiply
    104,628.69x = 144,131.31 × 75,863.84
  4. Step 4: Simplify right side
    104,628.69x = 10,934,353,920.17
  5. Step 5: Solve for x
    x = 10,934,353,920.17/104,628.69
  6. Step 6: Final answer
    x = 104,506.27

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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.