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Finding the Fourth Proportional to 103,637.62, 155,516.10 and 43,661.44

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Solution

The fourth proportional to 103,637.62, 155,516.10 and 43,661.44 is: 65,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,637.62 : 155,516.10 = 43,661.44 : x
  2. Step 2: Convert to fraction form
    103,637.62/155,516.10 = 43,661.44/x
  3. Step 3: Cross multiply
    103,637.62x = 155,516.10 × 43,661.44
  4. Step 4: Simplify right side
    103,637.62x = 6,790,056,869.18
  5. Step 5: Solve for x
    x = 6,790,056,869.18/103,637.62
  6. Step 6: Final answer
    x = 65,517.30

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1.5x scale

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.