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Finding the Fourth Proportional to 249,791.64, 344,691.63 and 140,889.97

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Solution

The fourth proportional to 249,791.64, 344,691.63 and 140,889.97 is: 194,416.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,791.64 : 344,691.63 = 140,889.97 : x
  2. Step 2: Convert to fraction form
    249,791.64/344,691.63 = 140,889.97/x
  3. Step 3: Cross multiply
    249,791.64x = 344,691.63 × 140,889.97
  4. Step 4: Simplify right side
    249,791.64x = 48,563,593,840.82
  5. Step 5: Solve for x
    x = 48,563,593,840.82/249,791.64
  6. Step 6: Final answer
    x = 194,416.41

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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.