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Finding the Fourth Proportional to 247,706.51, 371,702.77 and 133,854.71

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Solution

The fourth proportional to 247,706.51, 371,702.77 and 133,854.71 is: 200,859.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,706.51 : 371,702.77 = 133,854.71 : x
  2. Step 2: Convert to fraction form
    247,706.51/371,702.77 = 133,854.71/x
  3. Step 3: Cross multiply
    247,706.51x = 371,702.77 × 133,854.71
  4. Step 4: Simplify right side
    247,706.51x = 49,754,164,291.40
  5. Step 5: Solve for x
    x = 49,754,164,291.40/247,706.51
  6. Step 6: Final answer
    x = 200,859.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.