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Finding the Fourth Proportional to 68,677.47, 103,484.18 and 56,470.94

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Solution

The fourth proportional to 68,677.47, 103,484.18 and 56,470.94 is: 85,091.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,677.47 : 103,484.18 = 56,470.94 : x
  2. Step 2: Convert to fraction form
    68,677.47/103,484.18 = 56,470.94/x
  3. Step 3: Cross multiply
    68,677.47x = 103,484.18 × 56,470.94
  4. Step 4: Simplify right side
    68,677.47x = 5,843,848,919.73
  5. Step 5: Solve for x
    x = 5,843,848,919.73/68,677.47
  6. Step 6: Final answer
    x = 85,091.21

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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.