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Finding the Fourth Proportional to 111,773.25, 154,244.94 and 61,472.25

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Solution

The fourth proportional to 111,773.25, 154,244.94 and 61,472.25 is: 84,830.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,773.25 : 154,244.94 = 61,472.25 : x
  2. Step 2: Convert to fraction form
    111,773.25/154,244.94 = 61,472.25/x
  3. Step 3: Cross multiply
    111,773.25x = 154,244.94 × 61,472.25
  4. Step 4: Simplify right side
    111,773.25x = 9,481,783,512.92
  5. Step 5: Solve for x
    x = 9,481,783,512.92/111,773.25
  6. Step 6: Final answer
    x = 84,830.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.