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Finding the Fourth Proportional to 399,960.50, 599,881.75 and 147,182.27

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Solution

The fourth proportional to 399,960.50, 599,881.75 and 147,182.27 is: 220,751.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,960.50 : 599,881.75 = 147,182.27 : x
  2. Step 2: Convert to fraction form
    399,960.50/599,881.75 = 147,182.27/x
  3. Step 3: Cross multiply
    399,960.50x = 599,881.75 × 147,182.27
  4. Step 4: Simplify right side
    399,960.50x = 88,291,954,329.21
  5. Step 5: Solve for x
    x = 88,291,954,329.21/399,960.50
  6. Step 6: Final answer
    x = 220,751.69

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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.