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Finding the Fourth Proportional to 228,967.65, 315,994.77 and 127,025.97

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Solution

The fourth proportional to 228,967.65, 315,994.77 and 127,025.97 is: 175,306.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,967.65 : 315,994.77 = 127,025.97 : x
  2. Step 2: Convert to fraction form
    228,967.65/315,994.77 = 127,025.97/x
  3. Step 3: Cross multiply
    228,967.65x = 315,994.77 × 127,025.97
  4. Step 4: Simplify right side
    228,967.65x = 40,139,542,174.18
  5. Step 5: Solve for x
    x = 40,139,542,174.18/228,967.65
  6. Step 6: Final answer
    x = 175,306.61

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1.5x scale

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.