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Finding the Fourth Proportional to 108,261, 162,372.33 and 29,381.36

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Solution

The fourth proportional to 108,261, 162,372.33 and 29,381.36 is: 44,066.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,261 : 162,372.33 = 29,381.36 : x
  2. Step 2: Convert to fraction form
    108,261/162,372.33 = 29,381.36/x
  3. Step 3: Cross multiply
    108,261x = 162,372.33 × 29,381.36
  4. Step 4: Simplify right side
    108,261x = 4,770,719,881.77
  5. Step 5: Solve for x
    x = 4,770,719,881.77/108,261
  6. Step 6: Final answer
    x = 44,066.84

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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.