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Finding the Fourth Proportional to 73,479.01, 110,206.09 and 28,493.77

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Solution

The fourth proportional to 73,479.01, 110,206.09 and 28,493.77 is: 42,735.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,479.01 : 110,206.09 = 28,493.77 : x
  2. Step 2: Convert to fraction form
    73,479.01/110,206.09 = 28,493.77/x
  3. Step 3: Cross multiply
    73,479.01x = 110,206.09 × 28,493.77
  4. Step 4: Simplify right side
    73,479.01x = 3,140,186,981.06
  5. Step 5: Solve for x
    x = 3,140,186,981.06/73,479.01
  6. Step 6: Final answer
    x = 42,735.84

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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.