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Finding the Fourth Proportional to 70,363.12, 105,531.48 and 35,293.36

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Solution

The fourth proportional to 70,363.12, 105,531.48 and 35,293.36 is: 52,933.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,363.12 : 105,531.48 = 35,293.36 : x
  2. Step 2: Convert to fraction form
    70,363.12/105,531.48 = 35,293.36/x
  3. Step 3: Cross multiply
    70,363.12x = 105,531.48 × 35,293.36
  4. Step 4: Simplify right side
    70,363.12x = 3,724,560,514.97
  5. Step 5: Solve for x
    x = 3,724,560,514.97/70,363.12
  6. Step 6: Final answer
    x = 52,933.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.