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Finding the Fourth Proportional to 322,688.90, 484,032.69 and 153,696.68

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Solution

The fourth proportional to 322,688.90, 484,032.69 and 153,696.68 is: 230,544.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,688.90 : 484,032.69 = 153,696.68 : x
  2. Step 2: Convert to fraction form
    322,688.90/484,032.69 = 153,696.68/x
  3. Step 3: Cross multiply
    322,688.90x = 484,032.69 × 153,696.68
  4. Step 4: Simplify right side
    322,688.90x = 74,394,217,464.47
  5. Step 5: Solve for x
    x = 74,394,217,464.47/322,688.90
  6. Step 6: Final answer
    x = 230,544.71

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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.