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Finding the Fourth Proportional to 217,404.40, 325,669.20 and 146,545.60

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Solution

The fourth proportional to 217,404.40, 325,669.20 and 146,545.60 is: 219,523.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,404.40 : 325,669.20 = 146,545.60 : x
  2. Step 2: Convert to fraction form
    217,404.40/325,669.20 = 146,545.60/x
  3. Step 3: Cross multiply
    217,404.40x = 325,669.20 × 146,545.60
  4. Step 4: Simplify right side
    217,404.40x = 47,725,388,315.52
  5. Step 5: Solve for x
    x = 47,725,388,315.52/217,404.40
  6. Step 6: Final answer
    x = 219,523.56

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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.