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Finding the Fourth Proportional to 108,318.96, 162,361.80 and 103,352.88

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Solution

The fourth proportional to 108,318.96, 162,361.80 and 103,352.88 is: 154,918.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,318.96 : 162,361.80 = 103,352.88 : x
  2. Step 2: Convert to fraction form
    108,318.96/162,361.80 = 103,352.88/x
  3. Step 3: Cross multiply
    108,318.96x = 162,361.80 × 103,352.88
  4. Step 4: Simplify right side
    108,318.96x = 16,780,559,631.98
  5. Step 5: Solve for x
    x = 16,780,559,631.98/108,318.96
  6. Step 6: Final answer
    x = 154,918.03

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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.