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Finding the Fourth Proportional to 108,352.42, 149,564.01 and 74,473.30

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Solution

The fourth proportional to 108,352.42, 149,564.01 and 74,473.30 is: 102,799.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,352.42 : 149,564.01 = 74,473.30 : x
  2. Step 2: Convert to fraction form
    108,352.42/149,564.01 = 74,473.30/x
  3. Step 3: Cross multiply
    108,352.42x = 149,564.01 × 74,473.30
  4. Step 4: Simplify right side
    108,352.42x = 11,138,525,385.93
  5. Step 5: Solve for x
    x = 11,138,525,385.93/108,352.42
  6. Step 6: Final answer
    x = 102,799.05

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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.