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Finding the Fourth Proportional to 113,578.85, 170,447.33 and 47,019.33

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Solution

The fourth proportional to 113,578.85, 170,447.33 and 47,019.33 is: 70,561.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,578.85 : 170,447.33 = 47,019.33 : x
  2. Step 2: Convert to fraction form
    113,578.85/170,447.33 = 47,019.33/x
  3. Step 3: Cross multiply
    113,578.85x = 170,447.33 × 47,019.33
  4. Step 4: Simplify right side
    113,578.85x = 8,014,318,382.61
  5. Step 5: Solve for x
    x = 8,014,318,382.61/113,578.85
  6. Step 6: Final answer
    x = 70,561.72

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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.