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Finding the Fourth Proportional to 339,788.21, 468,908.93 and 186,836.01

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Solution

The fourth proportional to 339,788.21, 468,908.93 and 186,836.01 is: 257,834.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,788.21 : 468,908.93 = 186,836.01 : x
  2. Step 2: Convert to fraction form
    339,788.21/468,908.93 = 186,836.01/x
  3. Step 3: Cross multiply
    339,788.21x = 468,908.93 × 186,836.01
  4. Step 4: Simplify right side
    339,788.21x = 87,609,072,600.39
  5. Step 5: Solve for x
    x = 87,609,072,600.39/339,788.21
  6. Step 6: Final answer
    x = 257,834.35

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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.