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Finding the Fourth Proportional to 73,934.93, 110,911.60 and 28,950.48

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Solution

The fourth proportional to 73,934.93, 110,911.60 and 28,950.48 is: 43,429.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,934.93 : 110,911.60 = 28,950.48 : x
  2. Step 2: Convert to fraction form
    73,934.93/110,911.60 = 28,950.48/x
  3. Step 3: Cross multiply
    73,934.93x = 110,911.60 × 28,950.48
  4. Step 4: Simplify right side
    73,934.93x = 3,210,943,575.39
  5. Step 5: Solve for x
    x = 3,210,943,575.39/73,934.93
  6. Step 6: Final answer
    x = 43,429.32

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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.