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Finding the Fourth Proportional to 316,499.91, 474,791.55 and 103,192.92

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Solution

The fourth proportional to 316,499.91, 474,791.55 and 103,192.92 is: 154,802.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,499.91 : 474,791.55 = 103,192.92 : x
  2. Step 2: Convert to fraction form
    316,499.91/474,791.55 = 103,192.92/x
  3. Step 3: Cross multiply
    316,499.91x = 474,791.55 × 103,192.92
  4. Step 4: Simplify right side
    316,499.91x = 48,995,126,048.85
  5. Step 5: Solve for x
    x = 48,995,126,048.85/316,499.91
  6. Step 6: Final answer
    x = 154,802.97

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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.