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Finding the Fourth Proportional to 534,389.34, 801,509.84 and 135,005.52

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Solution

The fourth proportional to 534,389.34, 801,509.84 and 135,005.52 is: 202,489.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,389.34 : 801,509.84 = 135,005.52 : x
  2. Step 2: Convert to fraction form
    534,389.34/801,509.84 = 135,005.52/x
  3. Step 3: Cross multiply
    534,389.34x = 801,509.84 × 135,005.52
  4. Step 4: Simplify right side
    534,389.34x = 108,208,252,734.32
  5. Step 5: Solve for x
    x = 108,208,252,734.32/534,389.34
  6. Step 6: Final answer
    x = 202,489.54

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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.