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Finding the Fourth Proportional to 67,400.56, 92,914.32 and 47,193.76

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Solution

The fourth proportional to 67,400.56, 92,914.32 and 47,193.76 is: 65,058.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,400.56 : 92,914.32 = 47,193.76 : x
  2. Step 2: Convert to fraction form
    67,400.56/92,914.32 = 47,193.76/x
  3. Step 3: Cross multiply
    67,400.56x = 92,914.32 × 47,193.76
  4. Step 4: Simplify right side
    67,400.56x = 4,384,976,118.64
  5. Step 5: Solve for x
    x = 4,384,976,118.64/67,400.56
  6. Step 6: Final answer
    x = 65,058.45

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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.