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Finding the Fourth Proportional to 68,510.64, 102,787.56 and 24,135.60

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Solution

The fourth proportional to 68,510.64, 102,787.56 and 24,135.60 is: 36,211.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,510.64 : 102,787.56 = 24,135.60 : x
  2. Step 2: Convert to fraction form
    68,510.64/102,787.56 = 24,135.60/x
  3. Step 3: Cross multiply
    68,510.64x = 102,787.56 × 24,135.60
  4. Step 4: Simplify right side
    68,510.64x = 2,480,839,433.14
  5. Step 5: Solve for x
    x = 2,480,839,433.14/68,510.64
  6. Step 6: Final answer
    x = 36,211.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.