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Finding the Fourth Proportional to 270,584.35, 405,810.90 and 112,726.69

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Solution

The fourth proportional to 270,584.35, 405,810.90 and 112,726.69 is: 169,062.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,584.35 : 405,810.90 = 112,726.69 : x
  2. Step 2: Convert to fraction form
    270,584.35/405,810.90 = 112,726.69/x
  3. Step 3: Cross multiply
    270,584.35x = 405,810.90 × 112,726.69
  4. Step 4: Simplify right side
    270,584.35x = 45,745,719,522.92
  5. Step 5: Solve for x
    x = 45,745,719,522.92/270,584.35
  6. Step 6: Final answer
    x = 169,062.70

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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.