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Finding the Fourth Proportional to 108,998.19, 150,419.27 and 59,941.89

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Solution

The fourth proportional to 108,998.19, 150,419.27 and 59,941.89 is: 82,720.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,998.19 : 150,419.27 = 59,941.89 : x
  2. Step 2: Convert to fraction form
    108,998.19/150,419.27 = 59,941.89/x
  3. Step 3: Cross multiply
    108,998.19x = 150,419.27 × 59,941.89
  4. Step 4: Simplify right side
    108,998.19x = 9,016,415,486.08
  5. Step 5: Solve for x
    x = 9,016,415,486.08/108,998.19
  6. Step 6: Final answer
    x = 82,720.78

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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.