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Finding the Fourth Proportional to 68,773.32, 94,858.02 and 63,126

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Solution

The fourth proportional to 68,773.32, 94,858.02 and 63,126 is: 87,068.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,773.32 : 94,858.02 = 63,126 : x
  2. Step 2: Convert to fraction form
    68,773.32/94,858.02 = 63,126/x
  3. Step 3: Cross multiply
    68,773.32x = 94,858.02 × 63,126
  4. Step 4: Simplify right side
    68,773.32x = 5,988,007,370.52
  5. Step 5: Solve for x
    x = 5,988,007,370.52/68,773.32
  6. Step 6: Final answer
    x = 87,068.76

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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.