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Finding the Fourth Proportional to 202,345.50, 303,446.98 and 67,372.90

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Solution

The fourth proportional to 202,345.50, 303,446.98 and 67,372.90 is: 101,035.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,345.50 : 303,446.98 = 67,372.90 : x
  2. Step 2: Convert to fraction form
    202,345.50/303,446.98 = 67,372.90/x
  3. Step 3: Cross multiply
    202,345.50x = 303,446.98 × 67,372.90
  4. Step 4: Simplify right side
    202,345.50x = 20,444,103,038.84
  5. Step 5: Solve for x
    x = 20,444,103,038.84/202,345.50
  6. Step 6: Final answer
    x = 101,035.62

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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.