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Finding the Fourth Proportional to 85,753.68, 118,340.10 and 48,028.20

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Solution

The fourth proportional to 85,753.68, 118,340.10 and 48,028.20 is: 66,278.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,753.68 : 118,340.10 = 48,028.20 : x
  2. Step 2: Convert to fraction form
    85,753.68/118,340.10 = 48,028.20/x
  3. Step 3: Cross multiply
    85,753.68x = 118,340.10 × 48,028.20
  4. Step 4: Simplify right side
    85,753.68x = 5,683,661,990.82
  5. Step 5: Solve for x
    x = 5,683,661,990.82/85,753.68
  6. Step 6: Final answer
    x = 66,278.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.