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Finding the Fourth Proportional to 308,338.18, 462,600.42 and 146,356.54

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Solution

The fourth proportional to 308,338.18, 462,600.42 and 146,356.54 is: 219,579.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,338.18 : 462,600.42 = 146,356.54 : x
  2. Step 2: Convert to fraction form
    308,338.18/462,600.42 = 146,356.54/x
  3. Step 3: Cross multiply
    308,338.18x = 462,600.42 × 146,356.54
  4. Step 4: Simplify right side
    308,338.18x = 67,704,596,873.75
  5. Step 5: Solve for x
    x = 67,704,596,873.75/308,338.18
  6. Step 6: Final answer
    x = 219,579.02

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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.