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Finding the Fourth Proportional to 110,679.36, 152,737.20 and 60,378

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Solution

The fourth proportional to 110,679.36, 152,737.20 and 60,378 is: 83,321.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,679.36 : 152,737.20 = 60,378 : x
  2. Step 2: Convert to fraction form
    110,679.36/152,737.20 = 60,378/x
  3. Step 3: Cross multiply
    110,679.36x = 152,737.20 × 60,378
  4. Step 4: Simplify right side
    110,679.36x = 9,221,966,661.60
  5. Step 5: Solve for x
    x = 9,221,966,661.60/110,679.36
  6. Step 6: Final answer
    x = 83,321.47

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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.