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Finding the Fourth Proportional to 66,892.80, 92,374.50 and 43,060.82

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Solution

The fourth proportional to 66,892.80, 92,374.50 and 43,060.82 is: 59,464.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,892.80 : 92,374.50 = 43,060.82 : x
  2. Step 2: Convert to fraction form
    66,892.80/92,374.50 = 43,060.82/x
  3. Step 3: Cross multiply
    66,892.80x = 92,374.50 × 43,060.82
  4. Step 4: Simplify right side
    66,892.80x = 3,977,721,717.09
  5. Step 5: Solve for x
    x = 3,977,721,717.09/66,892.80
  6. Step 6: Final answer
    x = 59,464.12

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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.