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Finding the Fourth Proportional to 108,670.85, 162,988.79 and 29,766.64

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Solution

The fourth proportional to 108,670.85, 162,988.79 and 29,766.64 is: 44,645.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,670.85 : 162,988.79 = 29,766.64 : x
  2. Step 2: Convert to fraction form
    108,670.85/162,988.79 = 29,766.64/x
  3. Step 3: Cross multiply
    108,670.85x = 162,988.79 × 29,766.64
  4. Step 4: Simplify right side
    108,670.85x = 4,851,628,079.66
  5. Step 5: Solve for x
    x = 4,851,628,079.66/108,670.85
  6. Step 6: Final answer
    x = 44,645.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.