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Finding the Fourth Proportional to 104,600.16, 156,807.36 and 74,943.36

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Solution

The fourth proportional to 104,600.16, 156,807.36 and 74,943.36 is: 112,348.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,600.16 : 156,807.36 = 74,943.36 : x
  2. Step 2: Convert to fraction form
    104,600.16/156,807.36 = 74,943.36/x
  3. Step 3: Cross multiply
    104,600.16x = 156,807.36 × 74,943.36
  4. Step 4: Simplify right side
    104,600.16x = 11,751,670,431.13
  5. Step 5: Solve for x
    x = 11,751,670,431.13/104,600.16
  6. Step 6: Final answer
    x = 112,348.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.