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Finding the Fourth Proportional to 64,749.70, 97,329.35 and 61,063.30

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Solution

The fourth proportional to 64,749.70, 97,329.35 and 61,063.30 is: 91,788.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,749.70 : 97,329.35 = 61,063.30 : x
  2. Step 2: Convert to fraction form
    64,749.70/97,329.35 = 61,063.30/x
  3. Step 3: Cross multiply
    64,749.70x = 97,329.35 × 61,063.30
  4. Step 4: Simplify right side
    64,749.70x = 5,943,251,297.86
  5. Step 5: Solve for x
    x = 5,943,251,297.86/64,749.70
  6. Step 6: Final answer
    x = 91,788.09

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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.