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Finding the Fourth Proportional to 111,553.70, 153,944.09 and 61,252.70

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Solution

The fourth proportional to 111,553.70, 153,944.09 and 61,252.70 is: 84,528.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,553.70 : 153,944.09 = 61,252.70 : x
  2. Step 2: Convert to fraction form
    111,553.70/153,944.09 = 61,252.70/x
  3. Step 3: Cross multiply
    111,553.70x = 153,944.09 × 61,252.70
  4. Step 4: Simplify right side
    111,553.70x = 9,429,490,085.56
  5. Step 5: Solve for x
    x = 9,429,490,085.56/111,553.70
  6. Step 6: Final answer
    x = 84,528.71

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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.