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Finding the Fourth Proportional to 68,787.61, 94,886.55 and 43,253.50

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Solution

The fourth proportional to 68,787.61, 94,886.55 and 43,253.50 is: 59,664.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,787.61 : 94,886.55 = 43,253.50 : x
  2. Step 2: Convert to fraction form
    68,787.61/94,886.55 = 43,253.50/x
  3. Step 3: Cross multiply
    68,787.61x = 94,886.55 × 43,253.50
  4. Step 4: Simplify right side
    68,787.61x = 4,104,175,390.43
  5. Step 5: Solve for x
    x = 4,104,175,390.43/68,787.61
  6. Step 6: Final answer
    x = 59,664.46

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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.