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Finding the Fourth Proportional to 61,697.70, 92,335.95 and 39,196.98

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Solution

The fourth proportional to 61,697.70, 92,335.95 and 39,196.98 is: 58,661.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,697.70 : 92,335.95 = 39,196.98 : x
  2. Step 2: Convert to fraction form
    61,697.70/92,335.95 = 39,196.98/x
  3. Step 3: Cross multiply
    61,697.70x = 92,335.95 × 39,196.98
  4. Step 4: Simplify right side
    61,697.70x = 3,619,290,385.43
  5. Step 5: Solve for x
    x = 3,619,290,385.43/61,697.70
  6. Step 6: Final answer
    x = 58,661.67

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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.