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Finding the Fourth Proportional to 70,672.46, 97,530.36 and 40,467.56

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Solution

The fourth proportional to 70,672.46, 97,530.36 and 40,467.56 is: 55,846.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,672.46 : 97,530.36 = 40,467.56 : x
  2. Step 2: Convert to fraction form
    70,672.46/97,530.36 = 40,467.56/x
  3. Step 3: Cross multiply
    70,672.46x = 97,530.36 × 40,467.56
  4. Step 4: Simplify right side
    70,672.46x = 3,946,815,695.12
  5. Step 5: Solve for x
    x = 3,946,815,695.12/70,672.46
  6. Step 6: Final answer
    x = 55,846.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.