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Finding the Fourth Proportional to 526,469.48, 789,710.34 and 147,367.70

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Solution

The fourth proportional to 526,469.48, 789,710.34 and 147,367.70 is: 221,053.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,469.48 : 789,710.34 = 147,367.70 : x
  2. Step 2: Convert to fraction form
    526,469.48/789,710.34 = 147,367.70/x
  3. Step 3: Cross multiply
    526,469.48x = 789,710.34 × 147,367.70
  4. Step 4: Simplify right side
    526,469.48x = 116,377,796,472.02
  5. Step 5: Solve for x
    x = 116,377,796,472.02/526,469.48
  6. Step 6: Final answer
    x = 221,053.26

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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.