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Finding the Fourth Proportional to 92,820.80, 139,251.44 and 52,858.67

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Solution

The fourth proportional to 92,820.80, 139,251.44 and 52,858.67 is: 79,299.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,820.80 : 139,251.44 = 52,858.67 : x
  2. Step 2: Convert to fraction form
    92,820.80/139,251.44 = 52,858.67/x
  3. Step 3: Cross multiply
    92,820.80x = 139,251.44 × 52,858.67
  4. Step 4: Simplify right side
    92,820.80x = 7,360,645,349.87
  5. Step 5: Solve for x
    x = 7,360,645,349.87/92,820.80
  6. Step 6: Final answer
    x = 79,299.52

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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.