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Finding the Fourth Proportional to 73,358.84, 110,038.26 and 20,768.60

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Solution

The fourth proportional to 73,358.84, 110,038.26 and 20,768.60 is: 31,152.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,358.84 : 110,038.26 = 20,768.60 : x
  2. Step 2: Convert to fraction form
    73,358.84/110,038.26 = 20,768.60/x
  3. Step 3: Cross multiply
    73,358.84x = 110,038.26 × 20,768.60
  4. Step 4: Simplify right side
    73,358.84x = 2,285,340,606.64
  5. Step 5: Solve for x
    x = 2,285,340,606.64/73,358.84
  6. Step 6: Final answer
    x = 31,152.90

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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.