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Finding the Fourth Proportional to 66,808.60, 92,151.48 and 42,965.44

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Solution

The fourth proportional to 66,808.60, 92,151.48 and 42,965.44 is: 59,263.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,808.60 : 92,151.48 = 42,965.44 : x
  2. Step 2: Convert to fraction form
    66,808.60/92,151.48 = 42,965.44/x
  3. Step 3: Cross multiply
    66,808.60x = 92,151.48 × 42,965.44
  4. Step 4: Simplify right side
    66,808.60x = 3,959,328,884.85
  5. Step 5: Solve for x
    x = 3,959,328,884.85/66,808.60
  6. Step 6: Final answer
    x = 59,263.76

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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.