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Finding the Fourth Proportional to 111,056, 153,260.94 and 60,755

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Solution

The fourth proportional to 111,056, 153,260.94 and 60,755 is: 83,843.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,056 : 153,260.94 = 60,755 : x
  2. Step 2: Convert to fraction form
    111,056/153,260.94 = 60,755/x
  3. Step 3: Cross multiply
    111,056x = 153,260.94 × 60,755
  4. Step 4: Simplify right side
    111,056x = 9,311,368,409.70
  5. Step 5: Solve for x
    x = 9,311,368,409.70/111,056
  6. Step 6: Final answer
    x = 83,843.90

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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.