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Finding the Fourth Proportional to 228,590.94, 315,455.16 and 126,616.37

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Solution

The fourth proportional to 228,590.94, 315,455.16 and 126,616.37 is: 174,730.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,590.94 : 315,455.16 = 126,616.37 : x
  2. Step 2: Convert to fraction form
    228,590.94/315,455.16 = 126,616.37/x
  3. Step 3: Cross multiply
    228,590.94x = 315,455.16 × 126,616.37
  4. Step 4: Simplify right side
    228,590.94x = 39,941,785,442.29
  5. Step 5: Solve for x
    x = 39,941,785,442.29/228,590.94
  6. Step 6: Final answer
    x = 174,730.40

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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.