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Finding the Fourth Proportional to 61,241.67, 91,738.58 and 56,138.67

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Solution

The fourth proportional to 61,241.67, 91,738.58 and 56,138.67 is: 84,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,241.67 : 91,738.58 = 56,138.67 : x
  2. Step 2: Convert to fraction form
    61,241.67/91,738.58 = 56,138.67/x
  3. Step 3: Cross multiply
    61,241.67x = 91,738.58 × 56,138.67
  4. Step 4: Simplify right side
    61,241.67x = 5,150,081,588.20
  5. Step 5: Solve for x
    x = 5,150,081,588.20/61,241.67
  6. Step 6: Final answer
    x = 84,094.40

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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.