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Finding the Fourth Proportional to 68,263.20, 102,500.40 and 37,159.20

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Solution

The fourth proportional to 68,263.20, 102,500.40 and 37,159.20 is: 55,796.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,263.20 : 102,500.40 = 37,159.20 : x
  2. Step 2: Convert to fraction form
    68,263.20/102,500.40 = 37,159.20/x
  3. Step 3: Cross multiply
    68,263.20x = 102,500.40 × 37,159.20
  4. Step 4: Simplify right side
    68,263.20x = 3,808,832,863.68
  5. Step 5: Solve for x
    x = 3,808,832,863.68/68,263.20
  6. Step 6: Final answer
    x = 55,796.28

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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.