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Finding the Fourth Proportional to 249,640.92, 344,502.72 and 136,463.94

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Solution

The fourth proportional to 249,640.92, 344,502.72 and 136,463.94 is: 188,319.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,640.92 : 344,502.72 = 136,463.94 : x
  2. Step 2: Convert to fraction form
    249,640.92/344,502.72 = 136,463.94/x
  3. Step 3: Cross multiply
    249,640.92x = 344,502.72 × 136,463.94
  4. Step 4: Simplify right side
    249,640.92x = 47,012,198,511.92
  5. Step 5: Solve for x
    x = 47,012,198,511.92/249,640.92
  6. Step 6: Final answer
    x = 188,319.28

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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.