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Finding the Fourth Proportional to 225,840.12, 338,834.22 and 92,783.04

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Solution

The fourth proportional to 225,840.12, 338,834.22 and 92,783.04 is: 139,204.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,840.12 : 338,834.22 = 92,783.04 : x
  2. Step 2: Convert to fraction form
    225,840.12/338,834.22 = 92,783.04/x
  3. Step 3: Cross multiply
    225,840.12x = 338,834.22 × 92,783.04
  4. Step 4: Simplify right side
    225,840.12x = 31,438,068,987.63
  5. Step 5: Solve for x
    x = 31,438,068,987.63/225,840.12
  6. Step 6: Final answer
    x = 139,204.98

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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.