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Finding the Fourth Proportional to 111,558.94, 153,951.24 and 61,257.94

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Solution

The fourth proportional to 111,558.94, 153,951.24 and 61,257.94 is: 84,535.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,558.94 : 153,951.24 = 61,257.94 : x
  2. Step 2: Convert to fraction form
    111,558.94/153,951.24 = 61,257.94/x
  3. Step 3: Cross multiply
    111,558.94x = 153,951.24 × 61,257.94
  4. Step 4: Simplify right side
    111,558.94x = 9,430,736,245.00
  5. Step 5: Solve for x
    x = 9,430,736,245.00/111,558.94
  6. Step 6: Final answer
    x = 84,535.91

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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.