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Finding the Fourth Proportional to 106,772.40, 160,115.40 and 36,615.60

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Solution

The fourth proportional to 106,772.40, 160,115.40 and 36,615.60 is: 54,908.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,772.40 : 160,115.40 = 36,615.60 : x
  2. Step 2: Convert to fraction form
    106,772.40/160,115.40 = 36,615.60/x
  3. Step 3: Cross multiply
    106,772.40x = 160,115.40 × 36,615.60
  4. Step 4: Simplify right side
    106,772.40x = 5,862,721,440.24
  5. Step 5: Solve for x
    x = 5,862,721,440.24/106,772.40
  6. Step 6: Final answer
    x = 54,908.59

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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.