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Finding the Fourth Proportional to 74,737.20, 112,007.40 and 54,922.80

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Solution

The fourth proportional to 74,737.20, 112,007.40 and 54,922.80 is: 82,311.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,737.20 : 112,007.40 = 54,922.80 : x
  2. Step 2: Convert to fraction form
    74,737.20/112,007.40 = 54,922.80/x
  3. Step 3: Cross multiply
    74,737.20x = 112,007.40 × 54,922.80
  4. Step 4: Simplify right side
    74,737.20x = 6,151,760,028.72
  5. Step 5: Solve for x
    x = 6,151,760,028.72/74,737.20
  6. Step 6: Final answer
    x = 82,311.89

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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.