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Finding the Fourth Proportional to 68,715.19, 103,020.27 and 47,594.53

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Solution

The fourth proportional to 68,715.19, 103,020.27 and 47,594.53 is: 71,355.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,715.19 : 103,020.27 = 47,594.53 : x
  2. Step 2: Convert to fraction form
    68,715.19/103,020.27 = 47,594.53/x
  3. Step 3: Cross multiply
    68,715.19x = 103,020.27 × 47,594.53
  4. Step 4: Simplify right side
    68,715.19x = 4,903,201,331.12
  5. Step 5: Solve for x
    x = 4,903,201,331.12/68,715.19
  6. Step 6: Final answer
    x = 71,355.42

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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.