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Finding the Fourth Proportional to 68,203.30, 94,120.39 and 37,988.30

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Solution

The fourth proportional to 68,203.30, 94,120.39 and 37,988.30 is: 52,423.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,203.30 : 94,120.39 = 37,988.30 : x
  2. Step 2: Convert to fraction form
    68,203.30/94,120.39 = 37,988.30/x
  3. Step 3: Cross multiply
    68,203.30x = 94,120.39 × 37,988.30
  4. Step 4: Simplify right side
    68,203.30x = 3,575,474,080.00
  5. Step 5: Solve for x
    x = 3,575,474,080.00/68,203.30
  6. Step 6: Final answer
    x = 52,423.77

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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.