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Finding the Fourth Proportional to 210,814.52, 316,267.94 and 61,060.91

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Solution

The fourth proportional to 210,814.52, 316,267.94 and 61,060.91 is: 91,604.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,814.52 : 316,267.94 = 61,060.91 : x
  2. Step 2: Convert to fraction form
    210,814.52/316,267.94 = 61,060.91/x
  3. Step 3: Cross multiply
    210,814.52x = 316,267.94 × 61,060.91
  4. Step 4: Simplify right side
    210,814.52x = 19,311,606,791.54
  5. Step 5: Solve for x
    x = 19,311,606,791.54/210,814.52
  6. Step 6: Final answer
    x = 91,604.73

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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.