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Finding the Fourth Proportional to 108,888.64, 163,318.08 and 29,991.52

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Solution

The fourth proportional to 108,888.64, 163,318.08 and 29,991.52 is: 44,983.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,888.64 : 163,318.08 = 29,991.52 : x
  2. Step 2: Convert to fraction form
    108,888.64/163,318.08 = 29,991.52/x
  3. Step 3: Cross multiply
    108,888.64x = 163,318.08 × 29,991.52
  4. Step 4: Simplify right side
    108,888.64x = 4,898,157,462.68
  5. Step 5: Solve for x
    x = 4,898,157,462.68/108,888.64
  6. Step 6: Final answer
    x = 44,983.18

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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.