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Finding the Fourth Proportional to 402,317.80, 603,092.70 and 149,530.60

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Solution

The fourth proportional to 402,317.80, 603,092.70 and 149,530.60 is: 224,153.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,317.80 : 603,092.70 = 149,530.60 : x
  2. Step 2: Convert to fraction form
    402,317.80/603,092.70 = 149,530.60/x
  3. Step 3: Cross multiply
    402,317.80x = 603,092.70 × 149,530.60
  4. Step 4: Simplify right side
    402,317.80x = 90,180,813,286.62
  5. Step 5: Solve for x
    x = 90,180,813,286.62/402,317.80
  6. Step 6: Final answer
    x = 224,153.18

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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.