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Finding the Fourth Proportional to 228,653.94, 315,516.90 and 126,654.10

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Solution

The fourth proportional to 228,653.94, 315,516.90 and 126,654.10 is: 174,768.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,653.94 : 315,516.90 = 126,654.10 : x
  2. Step 2: Convert to fraction form
    228,653.94/315,516.90 = 126,654.10/x
  3. Step 3: Cross multiply
    228,653.94x = 315,516.90 × 126,654.10
  4. Step 4: Simplify right side
    228,653.94x = 39,961,509,004.29
  5. Step 5: Solve for x
    x = 39,961,509,004.29/228,653.94
  6. Step 6: Final answer
    x = 174,768.51

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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.