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Finding the Fourth Proportional to 339,780.43, 468,887.08 and 186,818.46

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Solution

The fourth proportional to 339,780.43, 468,887.08 and 186,818.46 is: 257,804.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,780.43 : 468,887.08 = 186,818.46 : x
  2. Step 2: Convert to fraction form
    339,780.43/468,887.08 = 186,818.46/x
  3. Step 3: Cross multiply
    339,780.43x = 468,887.08 × 186,818.46
  4. Step 4: Simplify right side
    339,780.43x = 87,596,761,265.40
  5. Step 5: Solve for x
    x = 87,596,761,265.40/339,780.43
  6. Step 6: Final answer
    x = 257,804.02

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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.