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Finding the Fourth Proportional to 270,476.92, 405,752.29 and 112,668.47

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Solution

The fourth proportional to 270,476.92, 405,752.29 and 112,668.47 is: 169,018.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,476.92 : 405,752.29 = 112,668.47 : x
  2. Step 2: Convert to fraction form
    270,476.92/405,752.29 = 112,668.47/x
  3. Step 3: Cross multiply
    270,476.92x = 405,752.29 × 112,668.47
  4. Step 4: Simplify right side
    270,476.92x = 45,715,488,924.43
  5. Step 5: Solve for x
    x = 45,715,488,924.43/270,476.92
  6. Step 6: Final answer
    x = 169,018.08

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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.