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Finding the Fourth Proportional to 70,669.80, 105,891.30 and 37,346.40

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Solution

The fourth proportional to 70,669.80, 105,891.30 and 37,346.40 is: 55,959.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,669.80 : 105,891.30 = 37,346.40 : x
  2. Step 2: Convert to fraction form
    70,669.80/105,891.30 = 37,346.40/x
  3. Step 3: Cross multiply
    70,669.80x = 105,891.30 × 37,346.40
  4. Step 4: Simplify right side
    70,669.80x = 3,954,658,846.32
  5. Step 5: Solve for x
    x = 3,954,658,846.32/70,669.80
  6. Step 6: Final answer
    x = 55,959.67

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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.