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Finding the Fourth Proportional to 73,387.85, 110,081.78 and 72,927.05

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Solution

The fourth proportional to 73,387.85, 110,081.78 and 72,927.05 is: 109,390.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,387.85 : 110,081.78 = 72,927.05 : x
  2. Step 2: Convert to fraction form
    73,387.85/110,081.78 = 72,927.05/x
  3. Step 3: Cross multiply
    73,387.85x = 110,081.78 × 72,927.05
  4. Step 4: Simplify right side
    73,387.85x = 8,027,939,109.51
  5. Step 5: Solve for x
    x = 8,027,939,109.51/73,387.85
  6. Step 6: Final answer
    x = 109,390.58

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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.