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Finding the Fourth Proportional to 270,498.43, 373,315.56 and 155,781.37

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Solution

The fourth proportional to 270,498.43, 373,315.56 and 155,781.37 is: 214,994.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,498.43 : 373,315.56 = 155,781.37 : x
  2. Step 2: Convert to fraction form
    270,498.43/373,315.56 = 155,781.37/x
  3. Step 3: Cross multiply
    270,498.43x = 373,315.56 × 155,781.37
  4. Step 4: Simplify right side
    270,498.43x = 58,155,609,379.12
  5. Step 5: Solve for x
    x = 58,155,609,379.12/270,498.43
  6. Step 6: Final answer
    x = 214,994.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.