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Finding the Fourth Proportional to 339,891.66, 469,040.37 and 186,929.64

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Solution

The fourth proportional to 339,891.66, 469,040.37 and 186,929.64 is: 257,957.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,891.66 : 469,040.37 = 186,929.64 : x
  2. Step 2: Convert to fraction form
    339,891.66/469,040.37 = 186,929.64/x
  3. Step 3: Cross multiply
    339,891.66x = 469,040.37 × 186,929.64
  4. Step 4: Simplify right side
    339,891.66x = 87,677,547,509.57
  5. Step 5: Solve for x
    x = 87,677,547,509.57/339,891.66
  6. Step 6: Final answer
    x = 257,957.34

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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.