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Finding the Fourth Proportional to 70,161.72, 105,246.23 and 35,089.53

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Solution

The fourth proportional to 70,161.72, 105,246.23 and 35,089.53 is: 52,636.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,161.72 : 105,246.23 = 35,089.53 : x
  2. Step 2: Convert to fraction form
    70,161.72/105,246.23 = 35,089.53/x
  3. Step 3: Cross multiply
    70,161.72x = 105,246.23 × 35,089.53
  4. Step 4: Simplify right side
    70,161.72x = 3,693,040,569.52
  5. Step 5: Solve for x
    x = 3,693,040,569.52/70,161.72
  6. Step 6: Final answer
    x = 52,636.12

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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.