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Finding the Fourth Proportional to 227,045.74, 313,323.21 and 131,607.82

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Solution

The fourth proportional to 227,045.74, 313,323.21 and 131,607.82 is: 181,618.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,045.74 : 313,323.21 = 131,607.82 : x
  2. Step 2: Convert to fraction form
    227,045.74/313,323.21 = 131,607.82/x
  3. Step 3: Cross multiply
    227,045.74x = 313,323.21 × 131,607.82
  4. Step 4: Simplify right side
    227,045.74x = 41,235,784,623.50
  5. Step 5: Solve for x
    x = 41,235,784,623.50/227,045.74
  6. Step 6: Final answer
    x = 181,618.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.