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Finding the Fourth Proportional to 534,720.31, 802,081.01 and 135,361.06

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Solution

The fourth proportional to 534,720.31, 802,081.01 and 135,361.06 is: 203,041.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,720.31 : 802,081.01 = 135,361.06 : x
  2. Step 2: Convert to fraction form
    534,720.31/802,081.01 = 135,361.06/x
  3. Step 3: Cross multiply
    534,720.31x = 802,081.01 × 135,361.06
  4. Step 4: Simplify right side
    534,720.31x = 108,570,535,042.67
  5. Step 5: Solve for x
    x = 108,570,535,042.67/534,720.31
  6. Step 6: Final answer
    x = 203,041.73

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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.