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Finding the Fourth Proportional to 210,940.52, 316,360.92 and 77,748.44

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Solution

The fourth proportional to 210,940.52, 316,360.92 and 77,748.44 is: 116,604.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,940.52 : 316,360.92 = 77,748.44 : x
  2. Step 2: Convert to fraction form
    210,940.52/316,360.92 = 77,748.44/x
  3. Step 3: Cross multiply
    210,940.52x = 316,360.92 × 77,748.44
  4. Step 4: Simplify right side
    210,940.52x = 24,596,568,006.96
  5. Step 5: Solve for x
    x = 24,596,568,006.96/210,940.52
  6. Step 6: Final answer
    x = 116,604.28

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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.