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Finding the Fourth Proportional to 108,602.19, 149,879.43 and 60,859.98

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Solution

The fourth proportional to 108,602.19, 149,879.43 and 60,859.98 is: 83,991.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,602.19 : 149,879.43 = 60,859.98 : x
  2. Step 2: Convert to fraction form
    108,602.19/149,879.43 = 60,859.98/x
  3. Step 3: Cross multiply
    108,602.19x = 149,879.43 × 60,859.98
  4. Step 4: Simplify right side
    108,602.19x = 9,121,659,112.21
  5. Step 5: Solve for x
    x = 9,121,659,112.21/108,602.19
  6. Step 6: Final answer
    x = 83,991.48

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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.