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Finding the Fourth Proportional to 73,506.15, 110,263.41 and 20,911.50

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Solution

The fourth proportional to 73,506.15, 110,263.41 and 20,911.50 is: 31,368.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,506.15 : 110,263.41 = 20,911.50 : x
  2. Step 2: Convert to fraction form
    73,506.15/110,263.41 = 20,911.50/x
  3. Step 3: Cross multiply
    73,506.15x = 110,263.41 × 20,911.50
  4. Step 4: Simplify right side
    73,506.15x = 2,305,773,298.22
  5. Step 5: Solve for x
    x = 2,305,773,298.22/73,506.15
  6. Step 6: Final answer
    x = 31,368.44

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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.