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Finding the Fourth Proportional to 194,341.91, 291,668.38 and 100,874.39

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Solution

The fourth proportional to 194,341.91, 291,668.38 and 100,874.39 is: 151,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,341.91 : 291,668.38 = 100,874.39 : x
  2. Step 2: Convert to fraction form
    194,341.91/291,668.38 = 100,874.39/x
  3. Step 3: Cross multiply
    194,341.91x = 291,668.38 × 100,874.39
  4. Step 4: Simplify right side
    194,341.91x = 29,421,868,204.26
  5. Step 5: Solve for x
    x = 29,421,868,204.26/194,341.91
  6. Step 6: Final answer
    x = 151,392.30

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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.