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Finding the Fourth Proportional to 228,892.46, 315,875.38 and 126,922.21

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Solution

The fourth proportional to 228,892.46, 315,875.38 and 126,922.21 is: 175,154.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,892.46 : 315,875.38 = 126,922.21 : x
  2. Step 2: Convert to fraction form
    228,892.46/315,875.38 = 126,922.21/x
  3. Step 3: Cross multiply
    228,892.46x = 315,875.38 × 126,922.21
  4. Step 4: Simplify right side
    228,892.46x = 40,091,601,867.69
  5. Step 5: Solve for x
    x = 40,091,601,867.69/228,892.46
  6. Step 6: Final answer
    x = 175,154.75

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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.