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Finding the Fourth Proportional to 67,393.52, 92,328.99 and 64,869.96

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Solution

The fourth proportional to 67,393.52, 92,328.99 and 64,869.96 is: 88,871.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,393.52 : 92,328.99 = 64,869.96 : x
  2. Step 2: Convert to fraction form
    67,393.52/92,328.99 = 64,869.96/x
  3. Step 3: Cross multiply
    67,393.52x = 92,328.99 × 64,869.96
  4. Step 4: Simplify right side
    67,393.52x = 5,989,377,888.14
  5. Step 5: Solve for x
    x = 5,989,377,888.14/67,393.52
  6. Step 6: Final answer
    x = 88,871.72

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.