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Finding the Fourth Proportional to 73,733.80, 110,600.70 and 68,031.40

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Solution

The fourth proportional to 73,733.80, 110,600.70 and 68,031.40 is: 102,047.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,733.80 : 110,600.70 = 68,031.40 : x
  2. Step 2: Convert to fraction form
    73,733.80/110,600.70 = 68,031.40/x
  3. Step 3: Cross multiply
    73,733.80x = 110,600.70 × 68,031.40
  4. Step 4: Simplify right side
    73,733.80x = 7,524,320,461.98
  5. Step 5: Solve for x
    x = 7,524,320,461.98/73,733.80
  6. Step 6: Final answer
    x = 102,047.10

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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.