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Finding the Fourth Proportional to 366,901.32, 550,315.12 and 100,688.64

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Solution

The fourth proportional to 366,901.32, 550,315.12 and 100,688.64 is: 151,022.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,901.32 : 550,315.12 = 100,688.64 : x
  2. Step 2: Convert to fraction form
    366,901.32/550,315.12 = 100,688.64/x
  3. Step 3: Cross multiply
    366,901.32x = 550,315.12 × 100,688.64
  4. Step 4: Simplify right side
    366,901.32x = 55,410,481,004.24
  5. Step 5: Solve for x
    x = 55,410,481,004.24/366,901.32
  6. Step 6: Final answer
    x = 151,022.84

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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.