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Finding the Fourth Proportional to 234,338.17, 323,384.95 and 126,905.71

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Solution

The fourth proportional to 234,338.17, 323,384.95 and 126,905.71 is: 175,128.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,338.17 : 323,384.95 = 126,905.71 : x
  2. Step 2: Convert to fraction form
    234,338.17/323,384.95 = 126,905.71/x
  3. Step 3: Cross multiply
    234,338.17x = 323,384.95 × 126,905.71
  4. Step 4: Simplify right side
    234,338.17x = 41,039,396,683.06
  5. Step 5: Solve for x
    x = 41,039,396,683.06/234,338.17
  6. Step 6: Final answer
    x = 175,128.95

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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.