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Finding the Fourth Proportional to 108,969.59, 150,377.45 and 61,222.52

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Solution

The fourth proportional to 108,969.59, 150,377.45 and 61,222.52 is: 84,486.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,969.59 : 150,377.45 = 61,222.52 : x
  2. Step 2: Convert to fraction form
    108,969.59/150,377.45 = 61,222.52/x
  3. Step 3: Cross multiply
    108,969.59x = 150,377.45 × 61,222.52
  4. Step 4: Simplify right side
    108,969.59x = 9,206,485,841.34
  5. Step 5: Solve for x
    x = 9,206,485,841.34/108,969.59
  6. Step 6: Final answer
    x = 84,486.75

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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.