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Finding the Fourth Proportional to 239,081.38, 358,580.44 and 89,322.91

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Solution

The fourth proportional to 239,081.38, 358,580.44 and 89,322.91 is: 133,968.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,081.38 : 358,580.44 = 89,322.91 : x
  2. Step 2: Convert to fraction form
    239,081.38/358,580.44 = 89,322.91/x
  3. Step 3: Cross multiply
    239,081.38x = 358,580.44 × 89,322.91
  4. Step 4: Simplify right side
    239,081.38x = 32,029,448,369.88
  5. Step 5: Solve for x
    x = 32,029,448,369.88/239,081.38
  6. Step 6: Final answer
    x = 133,968.81

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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.