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Finding the Fourth Proportional to 480,345.48, 720,596.52 and 147,921.48

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Solution

The fourth proportional to 480,345.48, 720,596.52 and 147,921.48 is: 221,906.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,345.48 : 720,596.52 = 147,921.48 : x
  2. Step 2: Convert to fraction form
    480,345.48/720,596.52 = 147,921.48/x
  3. Step 3: Cross multiply
    480,345.48x = 720,596.52 × 147,921.48
  4. Step 4: Simplify right side
    480,345.48x = 106,591,703,721.25
  5. Step 5: Solve for x
    x = 106,591,703,721.25/480,345.48
  6. Step 6: Final answer
    x = 221,906.33

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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.