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Finding the Fourth Proportional to 70,041.24, 104,974.38 and 45,014.67

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Solution

The fourth proportional to 70,041.24, 104,974.38 and 45,014.67 is: 67,465.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,041.24 : 104,974.38 = 45,014.67 : x
  2. Step 2: Convert to fraction form
    70,041.24/104,974.38 = 45,014.67/x
  3. Step 3: Cross multiply
    70,041.24x = 104,974.38 × 45,014.67
  4. Step 4: Simplify right side
    70,041.24x = 4,725,387,074.15
  5. Step 5: Solve for x
    x = 4,725,387,074.15/70,041.24
  6. Step 6: Final answer
    x = 67,465.78

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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.