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Finding the Fourth Proportional to 108,609.30, 149,874.66 and 63,294.66

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Solution

The fourth proportional to 108,609.30, 149,874.66 and 63,294.66 is: 87,343.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,609.30 : 149,874.66 = 63,294.66 : x
  2. Step 2: Convert to fraction form
    108,609.30/149,874.66 = 63,294.66/x
  3. Step 3: Cross multiply
    108,609.30x = 149,874.66 × 63,294.66
  4. Step 4: Simplify right side
    108,609.30x = 9,486,265,647.32
  5. Step 5: Solve for x
    x = 9,486,265,647.32/108,609.30
  6. Step 6: Final answer
    x = 87,343.03

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1.5x scale

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.