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Finding the Fourth Proportional to 117,674.39, 176,560.81 and 51,170.47

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Solution

The fourth proportional to 117,674.39, 176,560.81 and 51,170.47 is: 76,777.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,674.39 : 176,560.81 = 51,170.47 : x
  2. Step 2: Convert to fraction form
    117,674.39/176,560.81 = 51,170.47/x
  3. Step 3: Cross multiply
    117,674.39x = 176,560.81 × 51,170.47
  4. Step 4: Simplify right side
    117,674.39x = 9,034,699,061.95
  5. Step 5: Solve for x
    x = 9,034,699,061.95/117,674.39
  6. Step 6: Final answer
    x = 76,777.10

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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.