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Finding the Fourth Proportional to 339,876.15, 469,041.13 and 186,926.17

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Solution

The fourth proportional to 339,876.15, 469,041.13 and 186,926.17 is: 257,964.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,876.15 : 469,041.13 = 186,926.17 : x
  2. Step 2: Convert to fraction form
    339,876.15/469,041.13 = 186,926.17/x
  3. Step 3: Cross multiply
    339,876.15x = 469,041.13 × 186,926.17
  4. Step 4: Simplify right side
    339,876.15x = 87,676,062,003.37
  5. Step 5: Solve for x
    x = 87,676,062,003.37/339,876.15
  6. Step 6: Final answer
    x = 257,964.74

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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.