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Finding the Fourth Proportional to 70,163.46, 96,700.32 and 53,127

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Solution

The fourth proportional to 70,163.46, 96,700.32 and 53,127 is: 73,220.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,163.46 : 96,700.32 = 53,127 : x
  2. Step 2: Convert to fraction form
    70,163.46/96,700.32 = 53,127/x
  3. Step 3: Cross multiply
    70,163.46x = 96,700.32 × 53,127
  4. Step 4: Simplify right side
    70,163.46x = 5,137,397,900.64
  5. Step 5: Solve for x
    x = 5,137,397,900.64/70,163.46
  6. Step 6: Final answer
    x = 73,220.42

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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.