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Finding the Fourth Proportional to 111,999.17, 154,558.79 and 61,698.17

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Solution

The fourth proportional to 111,999.17, 154,558.79 and 61,698.17 is: 85,143.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,999.17 : 154,558.79 = 61,698.17 : x
  2. Step 2: Convert to fraction form
    111,999.17/154,558.79 = 61,698.17/x
  3. Step 3: Cross multiply
    111,999.17x = 154,558.79 × 61,698.17
  4. Step 4: Simplify right side
    111,999.17x = 9,535,994,288.23
  5. Step 5: Solve for x
    x = 9,535,994,288.23/111,999.17
  6. Step 6: Final answer
    x = 85,143.44

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