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Finding the Fourth Proportional to 67,552.79, 101,328.98 and 47,479.64

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Solution

The fourth proportional to 67,552.79, 101,328.98 and 47,479.64 is: 71,219.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,552.79 : 101,328.98 = 47,479.64 : x
  2. Step 2: Convert to fraction form
    67,552.79/101,328.98 = 47,479.64/x
  3. Step 3: Cross multiply
    67,552.79x = 101,328.98 × 47,479.64
  4. Step 4: Simplify right side
    67,552.79x = 4,811,062,747.92
  5. Step 5: Solve for x
    x = 4,811,062,747.92/67,552.79
  6. Step 6: Final answer
    x = 71,219.31

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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.