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Finding the Fourth Proportional to 117,379.78, 176,069.66 and 28,632.68

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Solution

The fourth proportional to 117,379.78, 176,069.66 and 28,632.68 is: 42,949.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,379.78 : 176,069.66 = 28,632.68 : x
  2. Step 2: Convert to fraction form
    117,379.78/176,069.66 = 28,632.68/x
  3. Step 3: Cross multiply
    117,379.78x = 176,069.66 × 28,632.68
  4. Step 4: Simplify right side
    117,379.78x = 5,041,346,744.24
  5. Step 5: Solve for x
    x = 5,041,346,744.24/117,379.78
  6. Step 6: Final answer
    x = 42,949.02

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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.