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Finding the Fourth Proportional to 100,963.80, 151,433.64 and 41,792.40

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Solution

The fourth proportional to 100,963.80, 151,433.64 and 41,792.40 is: 62,683.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,963.80 : 151,433.64 = 41,792.40 : x
  2. Step 2: Convert to fraction form
    100,963.80/151,433.64 = 41,792.40/x
  3. Step 3: Cross multiply
    100,963.80x = 151,433.64 × 41,792.40
  4. Step 4: Simplify right side
    100,963.80x = 6,328,775,256.34
  5. Step 5: Solve for x
    x = 6,328,775,256.34/100,963.80
  6. Step 6: Final answer
    x = 62,683.61

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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.