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Finding the Fourth Proportional to 76,753.63, 115,033.70 and 41,126.59

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Solution

The fourth proportional to 76,753.63, 115,033.70 and 41,126.59 is: 61,638.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,753.63 : 115,033.70 = 41,126.59 : x
  2. Step 2: Convert to fraction form
    76,753.63/115,033.70 = 41,126.59/x
  3. Step 3: Cross multiply
    76,753.63x = 115,033.70 × 41,126.59
  4. Step 4: Simplify right side
    76,753.63x = 4,730,943,610.45
  5. Step 5: Solve for x
    x = 4,730,943,610.45/76,753.63
  6. Step 6: Final answer
    x = 61,638.04

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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.