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Finding the Fourth Proportional to 228,626.17, 315,504.06 and 126,658.25

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Solution

The fourth proportional to 228,626.17, 315,504.06 and 126,658.25 is: 174,788.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,626.17 : 315,504.06 = 126,658.25 : x
  2. Step 2: Convert to fraction form
    228,626.17/315,504.06 = 126,658.25/x
  3. Step 3: Cross multiply
    228,626.17x = 315,504.06 × 126,658.25
  4. Step 4: Simplify right side
    228,626.17x = 39,961,191,238.15
  5. Step 5: Solve for x
    x = 39,961,191,238.15/228,626.17
  6. Step 6: Final answer
    x = 174,788.35

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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.