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Finding the Fourth Proportional to 249,894.81, 344,863.44 and 136,717.56

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Solution

The fourth proportional to 249,894.81, 344,863.44 and 136,717.56 is: 188,674.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,894.81 : 344,863.44 = 136,717.56 : x
  2. Step 2: Convert to fraction form
    249,894.81/344,863.44 = 136,717.56/x
  3. Step 3: Cross multiply
    249,894.81x = 344,863.44 × 136,717.56
  4. Step 4: Simplify right side
    249,894.81x = 47,148,888,050.01
  5. Step 5: Solve for x
    x = 47,148,888,050.01/249,894.81
  6. Step 6: Final answer
    x = 188,674.94

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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.