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Finding the Fourth Proportional to 339,428.61, 468,411.66 and 188,525.61

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Solution

The fourth proportional to 339,428.61, 468,411.66 and 188,525.61 is: 260,165.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,428.61 : 468,411.66 = 188,525.61 : x
  2. Step 2: Convert to fraction form
    339,428.61/468,411.66 = 188,525.61/x
  3. Step 3: Cross multiply
    339,428.61x = 468,411.66 × 188,525.61
  4. Step 4: Simplify right side
    339,428.61x = 88,307,593,932.61
  5. Step 5: Solve for x
    x = 88,307,593,932.61/339,428.61
  6. Step 6: Final answer
    x = 260,165.44

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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.