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Finding the Fourth Proportional to 534,771.31, 802,158.79 and 135,411.89

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Solution

The fourth proportional to 534,771.31, 802,158.79 and 135,411.89 is: 203,118.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,771.31 : 802,158.79 = 135,411.89 : x
  2. Step 2: Convert to fraction form
    534,771.31/802,158.79 = 135,411.89/x
  3. Step 3: Cross multiply
    534,771.31x = 802,158.79 × 135,411.89
  4. Step 4: Simplify right side
    534,771.31x = 108,621,837,834.01
  5. Step 5: Solve for x
    x = 108,621,837,834.01/534,771.31
  6. Step 6: Final answer
    x = 203,118.30

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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.