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Finding the Fourth Proportional to 108,895.66, 163,354.79 and 30,009.90

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Solution

The fourth proportional to 108,895.66, 163,354.79 and 30,009.90 is: 45,017.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,895.66 : 163,354.79 = 30,009.90 : x
  2. Step 2: Convert to fraction form
    108,895.66/163,354.79 = 30,009.90/x
  3. Step 3: Cross multiply
    108,895.66x = 163,354.79 × 30,009.90
  4. Step 4: Simplify right side
    108,895.66x = 4,902,260,912.42
  5. Step 5: Solve for x
    x = 4,902,260,912.42/108,895.66
  6. Step 6: Final answer
    x = 45,017.96

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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.