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Finding the Fourth Proportional to 475,555.20, 713,331.84 and 115,723.20

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Solution

The fourth proportional to 475,555.20, 713,331.84 and 115,723.20 is: 173,584.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,555.20 : 713,331.84 = 115,723.20 : x
  2. Step 2: Convert to fraction form
    475,555.20/713,331.84 = 115,723.20/x
  3. Step 3: Cross multiply
    475,555.20x = 713,331.84 × 115,723.20
  4. Step 4: Simplify right side
    475,555.20x = 82,549,043,186.69
  5. Step 5: Solve for x
    x = 82,549,043,186.69/475,555.20
  6. Step 6: Final answer
    x = 173,584.57

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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.