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Finding the Fourth Proportional to 228,123.64, 314,812.67 and 126,155.97

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Solution

The fourth proportional to 228,123.64, 314,812.67 and 126,155.97 is: 174,096.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,123.64 : 314,812.67 = 126,155.97 : x
  2. Step 2: Convert to fraction form
    228,123.64/314,812.67 = 126,155.97/x
  3. Step 3: Cross multiply
    228,123.64x = 314,812.67 × 126,155.97
  4. Step 4: Simplify right side
    228,123.64x = 39,715,497,752.14
  5. Step 5: Solve for x
    x = 39,715,497,752.14/228,123.64
  6. Step 6: Final answer
    x = 174,096.37

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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.