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Finding the Fourth Proportional to 356,388.30, 534,662.23 and 119,724.52

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Solution

The fourth proportional to 356,388.30, 534,662.23 and 119,724.52 is: 179,613.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,388.30 : 534,662.23 = 119,724.52 : x
  2. Step 2: Convert to fraction form
    356,388.30/534,662.23 = 119,724.52/x
  3. Step 3: Cross multiply
    356,388.30x = 534,662.23 × 119,724.52
  4. Step 4: Simplify right side
    356,388.30x = 64,012,178,549.57
  5. Step 5: Solve for x
    x = 64,012,178,549.57/356,388.30
  6. Step 6: Final answer
    x = 179,613.58

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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.