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Finding the Fourth Proportional to 73,532.90, 110,408.70 and 56,911.70

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Solution

The fourth proportional to 73,532.90, 110,408.70 and 56,911.70 is: 85,452.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,532.90 : 110,408.70 = 56,911.70 : x
  2. Step 2: Convert to fraction form
    73,532.90/110,408.70 = 56,911.70/x
  3. Step 3: Cross multiply
    73,532.90x = 110,408.70 × 56,911.70
  4. Step 4: Simplify right side
    73,532.90x = 6,283,546,811.79
  5. Step 5: Solve for x
    x = 6,283,546,811.79/73,532.90
  6. Step 6: Final answer
    x = 85,452.18

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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.