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Finding the Fourth Proportional to 239,195.56, 358,668.77 and 89,312.59

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Solution

The fourth proportional to 239,195.56, 358,668.77 and 89,312.59 is: 133,922.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,195.56 : 358,668.77 = 89,312.59 : x
  2. Step 2: Convert to fraction form
    239,195.56/358,668.77 = 89,312.59/x
  3. Step 3: Cross multiply
    239,195.56x = 358,668.77 × 89,312.59
  4. Step 4: Simplify right side
    239,195.56x = 32,033,634,560.91
  5. Step 5: Solve for x
    x = 32,033,634,560.91/239,195.56
  6. Step 6: Final answer
    x = 133,922.36

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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.