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Finding the Fourth Proportional to 175,636, 242,311.53 and 115,239.97

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Solution

The fourth proportional to 175,636, 242,311.53 and 115,239.97 is: 158,987.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,636 : 242,311.53 = 115,239.97 : x
  2. Step 2: Convert to fraction form
    175,636/242,311.53 = 115,239.97/x
  3. Step 3: Cross multiply
    175,636x = 242,311.53 × 115,239.97
  4. Step 4: Simplify right side
    175,636x = 27,923,973,447.85
  5. Step 5: Solve for x
    x = 27,923,973,447.85/175,636
  6. Step 6: Final answer
    x = 158,987.76

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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.