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Finding the Fourth Proportional to 73,006.45, 100,748.72 and 40,740.73

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Solution

The fourth proportional to 73,006.45, 100,748.72 and 40,740.73 is: 56,222.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,006.45 : 100,748.72 = 40,740.73 : x
  2. Step 2: Convert to fraction form
    73,006.45/100,748.72 = 40,740.73/x
  3. Step 3: Cross multiply
    73,006.45x = 100,748.72 × 40,740.73
  4. Step 4: Simplify right side
    73,006.45x = 4,104,575,943.79
  5. Step 5: Solve for x
    x = 4,104,575,943.79/73,006.45
  6. Step 6: Final answer
    x = 56,222.10

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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.