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Finding the Fourth Proportional to 249,694.72, 344,579.32 and 136,524.76

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Solution

The fourth proportional to 249,694.72, 344,579.32 and 136,524.76 is: 188,404.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,694.72 : 344,579.32 = 136,524.76 : x
  2. Step 2: Convert to fraction form
    249,694.72/344,579.32 = 136,524.76/x
  3. Step 3: Cross multiply
    249,694.72x = 344,579.32 × 136,524.76
  4. Step 4: Simplify right side
    249,694.72x = 47,043,608,963.96
  5. Step 5: Solve for x
    x = 47,043,608,963.96/249,694.72
  6. Step 6: Final answer
    x = 188,404.50

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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.