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Finding the Fourth Proportional to 249,919.74, 344,894.22 and 136,744.92

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Solution

The fourth proportional to 249,919.74, 344,894.22 and 136,744.92 is: 188,710.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,919.74 : 344,894.22 = 136,744.92 : x
  2. Step 2: Convert to fraction form
    249,919.74/344,894.22 = 136,744.92/x
  3. Step 3: Cross multiply
    249,919.74x = 344,894.22 × 136,744.92
  4. Step 4: Simplify right side
    249,919.74x = 47,162,532,522.36
  5. Step 5: Solve for x
    x = 47,162,532,522.36/249,919.74
  6. Step 6: Final answer
    x = 188,710.71

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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.