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Finding the Fourth Proportional to 187,367.58, 280,854.54 and 68,963.40

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Solution

The fourth proportional to 187,367.58, 280,854.54 and 68,963.40 is: 103,372.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,367.58 : 280,854.54 = 68,963.40 : x
  2. Step 2: Convert to fraction form
    187,367.58/280,854.54 = 68,963.40/x
  3. Step 3: Cross multiply
    187,367.58x = 280,854.54 × 68,963.40
  4. Step 4: Simplify right side
    187,367.58x = 19,368,683,983.84
  5. Step 5: Solve for x
    x = 19,368,683,983.84/187,367.58
  6. Step 6: Final answer
    x = 103,372.65

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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.