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Finding the Fourth Proportional to 60,222.31, 90,300.89 and 47,822.11

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Solution

The fourth proportional to 60,222.31, 90,300.89 and 47,822.11 is: 71,707.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,222.31 : 90,300.89 = 47,822.11 : x
  2. Step 2: Convert to fraction form
    60,222.31/90,300.89 = 47,822.11/x
  3. Step 3: Cross multiply
    60,222.31x = 90,300.89 × 47,822.11
  4. Step 4: Simplify right side
    60,222.31x = 4,318,378,855.57
  5. Step 5: Solve for x
    x = 4,318,378,855.57/60,222.31
  6. Step 6: Final answer
    x = 71,707.29

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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.