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Finding the Fourth Proportional to 249,269.88, 343,992.34 and 136,092.64

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Solution

The fourth proportional to 249,269.88, 343,992.34 and 136,092.64 is: 187,807.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,269.88 : 343,992.34 = 136,092.64 : x
  2. Step 2: Convert to fraction form
    249,269.88/343,992.34 = 136,092.64/x
  3. Step 3: Cross multiply
    249,269.88x = 343,992.34 × 136,092.64
  4. Step 4: Simplify right side
    249,269.88x = 46,814,825,690.38
  5. Step 5: Solve for x
    x = 46,814,825,690.38/249,269.88
  6. Step 6: Final answer
    x = 187,807.79

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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.