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Finding the Fourth Proportional to 234,146.50, 323,123.18 and 126,716.54

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Solution

The fourth proportional to 234,146.50, 323,123.18 and 126,716.54 is: 174,869.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,146.50 : 323,123.18 = 126,716.54 : x
  2. Step 2: Convert to fraction form
    234,146.50/323,123.18 = 126,716.54/x
  3. Step 3: Cross multiply
    234,146.50x = 323,123.18 × 126,716.54
  4. Step 4: Simplify right side
    234,146.50x = 40,945,051,363.40
  5. Step 5: Solve for x
    x = 40,945,051,363.40/234,146.50
  6. Step 6: Final answer
    x = 174,869.37

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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.