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Finding the Fourth Proportional to 73,706.52, 101,714.76 and 40,172.52

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Solution

The fourth proportional to 73,706.52, 101,714.76 and 40,172.52 is: 55,437.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,706.52 : 101,714.76 = 40,172.52 : x
  2. Step 2: Convert to fraction form
    73,706.52/101,714.76 = 40,172.52/x
  3. Step 3: Cross multiply
    73,706.52x = 101,714.76 × 40,172.52
  4. Step 4: Simplify right side
    73,706.52x = 4,086,138,230.40
  5. Step 5: Solve for x
    x = 4,086,138,230.40/73,706.52
  6. Step 6: Final answer
    x = 55,437.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.