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Finding the Fourth Proportional to 207,076.96, 310,393.98 and 107,136.52

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Solution

The fourth proportional to 207,076.96, 310,393.98 and 107,136.52 is: 160,590.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,076.96 : 310,393.98 = 107,136.52 : x
  2. Step 2: Convert to fraction form
    207,076.96/310,393.98 = 107,136.52/x
  3. Step 3: Cross multiply
    207,076.96x = 310,393.98 × 107,136.52
  4. Step 4: Simplify right side
    207,076.96x = 33,254,530,846.15
  5. Step 5: Solve for x
    x = 33,254,530,846.15/207,076.96
  6. Step 6: Final answer
    x = 160,590.20

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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.