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Finding the Fourth Proportional to 73,750.94, 110,627.02 and 21,162.08

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Solution

The fourth proportional to 73,750.94, 110,627.02 and 21,162.08 is: 31,743.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,750.94 : 110,627.02 = 21,162.08 : x
  2. Step 2: Convert to fraction form
    73,750.94/110,627.02 = 21,162.08/x
  3. Step 3: Cross multiply
    73,750.94x = 110,627.02 × 21,162.08
  4. Step 4: Simplify right side
    73,750.94x = 2,341,097,847.40
  5. Step 5: Solve for x
    x = 2,341,097,847.40/73,750.94
  6. Step 6: Final answer
    x = 31,743.30

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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.