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Finding the Fourth Proportional to 92,778.96, 139,179.12 and 29,576.80

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Solution

The fourth proportional to 92,778.96, 139,179.12 and 29,576.80 is: 44,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,778.96 : 139,179.12 = 29,576.80 : x
  2. Step 2: Convert to fraction form
    92,778.96/139,179.12 = 29,576.80/x
  3. Step 3: Cross multiply
    92,778.96x = 139,179.12 × 29,576.80
  4. Step 4: Simplify right side
    92,778.96x = 4,116,472,996.42
  5. Step 5: Solve for x
    x = 4,116,472,996.42/92,778.96
  6. Step 6: Final answer
    x = 44,368.60

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1.5x scale

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.