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Finding the Fourth Proportional to 66,807.82, 92,150.49 and 42,964.66

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Solution

The fourth proportional to 66,807.82, 92,150.49 and 42,964.66 is: 59,262.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,807.82 : 92,150.49 = 42,964.66 : x
  2. Step 2: Convert to fraction form
    66,807.82/92,150.49 = 42,964.66/x
  3. Step 3: Cross multiply
    66,807.82x = 92,150.49 × 42,964.66
  4. Step 4: Simplify right side
    66,807.82x = 3,959,214,471.68
  5. Step 5: Solve for x
    x = 3,959,214,471.68/66,807.82
  6. Step 6: Final answer
    x = 59,262.74

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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.