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Finding the Fourth Proportional to 92,671.32, 139,012.88 and 32,692.38

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Solution

The fourth proportional to 92,671.32, 139,012.88 and 32,692.38 is: 49,040.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,671.32 : 139,012.88 = 32,692.38 : x
  2. Step 2: Convert to fraction form
    92,671.32/139,012.88 = 32,692.38/x
  3. Step 3: Cross multiply
    92,671.32x = 139,012.88 × 32,692.38
  4. Step 4: Simplify right side
    92,671.32x = 4,544,661,213.09
  5. Step 5: Solve for x
    x = 4,544,661,213.09/92,671.32
  6. Step 6: Final answer
    x = 49,040.64

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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.