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Finding the Fourth Proportional to 67,377.66, 92,989.78 and 56,027.64

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Solution

The fourth proportional to 67,377.66, 92,989.78 and 56,027.64 is: 77,325.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,377.66 : 92,989.78 = 56,027.64 : x
  2. Step 2: Convert to fraction form
    67,377.66/92,989.78 = 56,027.64/x
  3. Step 3: Cross multiply
    67,377.66x = 92,989.78 × 56,027.64
  4. Step 4: Simplify right side
    67,377.66x = 5,209,997,917.52
  5. Step 5: Solve for x
    x = 5,209,997,917.52/67,377.66
  6. Step 6: Final answer
    x = 77,325.30

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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.