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Finding the Fourth Proportional to 283,515.31, 425,451.01 and 115,036.35

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Solution

The fourth proportional to 283,515.31, 425,451.01 and 115,036.35 is: 172,626.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,515.31 : 425,451.01 = 115,036.35 : x
  2. Step 2: Convert to fraction form
    283,515.31/425,451.01 = 115,036.35/x
  3. Step 3: Cross multiply
    283,515.31x = 425,451.01 × 115,036.35
  4. Step 4: Simplify right side
    283,515.31x = 48,942,331,696.50
  5. Step 5: Solve for x
    x = 48,942,331,696.50/283,515.31
  6. Step 6: Final answer
    x = 172,626.77

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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.