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Finding the Fourth Proportional to 68,672.97, 103,477.39 and 56,466.44

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Solution

The fourth proportional to 68,672.97, 103,477.39 and 56,466.44 is: 85,084.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,672.97 : 103,477.39 = 56,466.44 : x
  2. Step 2: Convert to fraction form
    68,672.97/103,477.39 = 56,466.44/x
  3. Step 3: Cross multiply
    68,672.97x = 103,477.39 × 56,466.44
  4. Step 4: Simplify right side
    68,672.97x = 5,842,999,833.79
  5. Step 5: Solve for x
    x = 5,842,999,833.79/68,672.97
  6. Step 6: Final answer
    x = 85,084.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.