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Finding the Fourth Proportional to 470,536.28, 705,806.79 and 115,550.43

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Solution

The fourth proportional to 470,536.28, 705,806.79 and 115,550.43 is: 173,326.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,536.28 : 705,806.79 = 115,550.43 : x
  2. Step 2: Convert to fraction form
    470,536.28/705,806.79 = 115,550.43/x
  3. Step 3: Cross multiply
    470,536.28x = 705,806.79 × 115,550.43
  4. Step 4: Simplify right side
    470,536.28x = 81,556,278,081.42
  5. Step 5: Solve for x
    x = 81,556,278,081.42/470,536.28
  6. Step 6: Final answer
    x = 173,326.23

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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.