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Finding the Fourth Proportional to 339,808.47, 468,949.20 and 186,859.20

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Solution

The fourth proportional to 339,808.47, 468,949.20 and 186,859.20 is: 257,873.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,808.47 : 468,949.20 = 186,859.20 : x
  2. Step 2: Convert to fraction form
    339,808.47/468,949.20 = 186,859.20/x
  3. Step 3: Cross multiply
    339,808.47x = 468,949.20 × 186,859.20
  4. Step 4: Simplify right side
    339,808.47x = 87,627,473,410.48
  5. Step 5: Solve for x
    x = 87,627,473,410.48/339,808.47
  6. Step 6: Final answer
    x = 257,873.13

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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.