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Finding the Fourth Proportional to 335,728.76, 503,143.94 and 164,688.98

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Solution

The fourth proportional to 335,728.76, 503,143.94 and 164,688.98 is: 246,813.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,728.76 : 503,143.94 = 164,688.98 : x
  2. Step 2: Convert to fraction form
    335,728.76/503,143.94 = 164,688.98/x
  3. Step 3: Cross multiply
    335,728.76x = 503,143.94 × 164,688.98
  4. Step 4: Simplify right side
    335,728.76x = 82,862,260,167.78
  5. Step 5: Solve for x
    x = 82,862,260,167.78/335,728.76
  6. Step 6: Final answer
    x = 246,813.12

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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.