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Finding the Fourth Proportional to 228,900.30, 315,883.10 and 126,932.94

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Solution

The fourth proportional to 228,900.30, 315,883.10 and 126,932.94 is: 175,167.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,900.30 : 315,883.10 = 126,932.94 : x
  2. Step 2: Convert to fraction form
    228,900.30/315,883.10 = 126,932.94/x
  3. Step 3: Cross multiply
    228,900.30x = 315,883.10 × 126,932.94
  4. Step 4: Simplify right side
    228,900.30x = 40,095,970,579.31
  5. Step 5: Solve for x
    x = 40,095,970,579.31/228,900.30
  6. Step 6: Final answer
    x = 175,167.84

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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.