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Finding the Fourth Proportional to 519,651.73, 779,499.51 and 164,657.89

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Solution

The fourth proportional to 519,651.73, 779,499.51 and 164,657.89 is: 246,993.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,651.73 : 779,499.51 = 164,657.89 : x
  2. Step 2: Convert to fraction form
    519,651.73/779,499.51 = 164,657.89/x
  3. Step 3: Cross multiply
    519,651.73x = 779,499.51 × 164,657.89
  4. Step 4: Simplify right side
    519,651.73x = 128,350,744,572.63
  5. Step 5: Solve for x
    x = 128,350,744,572.63/519,651.73
  6. Step 6: Final answer
    x = 246,993.78

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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.