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Finding the Fourth Proportional to 111,102.48, 153,315.54 and 60,791.76

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Solution

The fourth proportional to 111,102.48, 153,315.54 and 60,791.76 is: 83,889.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,102.48 : 153,315.54 = 60,791.76 : x
  2. Step 2: Convert to fraction form
    111,102.48/153,315.54 = 60,791.76/x
  3. Step 3: Cross multiply
    111,102.48x = 153,315.54 × 60,791.76
  4. Step 4: Simplify right side
    111,102.48x = 9,320,321,511.95
  5. Step 5: Solve for x
    x = 9,320,321,511.95/111,102.48
  6. Step 6: Final answer
    x = 83,889.41

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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.