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Finding the Fourth Proportional to 128,484.50, 192,747.29 and 44,223.93

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Solution

The fourth proportional to 128,484.50, 192,747.29 and 44,223.93 is: 66,342.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,484.50 : 192,747.29 = 44,223.93 : x
  2. Step 2: Convert to fraction form
    128,484.50/192,747.29 = 44,223.93/x
  3. Step 3: Cross multiply
    128,484.50x = 192,747.29 × 44,223.93
  4. Step 4: Simplify right side
    128,484.50x = 8,524,042,439.53
  5. Step 5: Solve for x
    x = 8,524,042,439.53/128,484.50
  6. Step 6: Final answer
    x = 66,342.97

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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.