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Finding the Fourth Proportional to 228,911.70, 343,756.35 and 169,814.10

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Solution

The fourth proportional to 228,911.70, 343,756.35 and 169,814.10 is: 255,009.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,911.70 : 343,756.35 = 169,814.10 : x
  2. Step 2: Convert to fraction form
    228,911.70/343,756.35 = 169,814.10/x
  3. Step 3: Cross multiply
    228,911.70x = 343,756.35 × 169,814.10
  4. Step 4: Simplify right side
    228,911.70x = 58,374,675,194.54
  5. Step 5: Solve for x
    x = 58,374,675,194.54/228,911.70
  6. Step 6: Final answer
    x = 255,009.57

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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.