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Finding the Fourth Proportional to 108,503.63, 149,741.17 and 60,756.56

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Solution

The fourth proportional to 108,503.63, 149,741.17 and 60,756.56 is: 83,847.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,503.63 : 149,741.17 = 60,756.56 : x
  2. Step 2: Convert to fraction form
    108,503.63/149,741.17 = 60,756.56/x
  3. Step 3: Cross multiply
    108,503.63x = 149,741.17 × 60,756.56
  4. Step 4: Simplify right side
    108,503.63x = 9,097,757,630.87
  5. Step 5: Solve for x
    x = 9,097,757,630.87/108,503.63
  6. Step 6: Final answer
    x = 83,847.50

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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.