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Finding the Fourth Proportional to 104,813.67, 156,737.62 and 77,846.92

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Solution

The fourth proportional to 104,813.67, 156,737.62 and 77,846.92 is: 116,411.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,813.67 : 156,737.62 = 77,846.92 : x
  2. Step 2: Convert to fraction form
    104,813.67/156,737.62 = 77,846.92/x
  3. Step 3: Cross multiply
    104,813.67x = 156,737.62 × 77,846.92
  4. Step 4: Simplify right side
    104,813.67x = 12,201,540,965.13
  5. Step 5: Solve for x
    x = 12,201,540,965.13/104,813.67
  6. Step 6: Final answer
    x = 116,411.73

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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.