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Finding the Fourth Proportional to 400,086.36, 599,944.84 and 147,303.36

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Solution

The fourth proportional to 400,086.36, 599,944.84 and 147,303.36 is: 220,887.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,086.36 : 599,944.84 = 147,303.36 : x
  2. Step 2: Convert to fraction form
    400,086.36/599,944.84 = 147,303.36/x
  3. Step 3: Cross multiply
    400,086.36x = 599,944.84 × 147,303.36
  4. Step 4: Simplify right side
    400,086.36x = 88,373,890,746.66
  5. Step 5: Solve for x
    x = 88,373,890,746.66/400,086.36
  6. Step 6: Final answer
    x = 220,887.04

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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.