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Finding the Fourth Proportional to 270,849.99, 406,312.79 and 113,042.31

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Solution

The fourth proportional to 270,849.99, 406,312.79 and 113,042.31 is: 169,579.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,849.99 : 406,312.79 = 113,042.31 : x
  2. Step 2: Convert to fraction form
    270,849.99/406,312.79 = 113,042.31/x
  3. Step 3: Cross multiply
    270,849.99x = 406,312.79 × 113,042.31
  4. Step 4: Simplify right side
    270,849.99x = 45,930,535,798.93
  5. Step 5: Solve for x
    x = 45,930,535,798.93/270,849.99
  6. Step 6: Final answer
    x = 169,579.24

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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.