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Finding the Fourth Proportional to 224,318.49, 336,541.31 and 91,294.21

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Solution

The fourth proportional to 224,318.49, 336,541.31 and 91,294.21 is: 136,967.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,318.49 : 336,541.31 = 91,294.21 : x
  2. Step 2: Convert to fraction form
    224,318.49/336,541.31 = 91,294.21/x
  3. Step 3: Cross multiply
    224,318.49x = 336,541.31 × 91,294.21
  4. Step 4: Simplify right side
    224,318.49x = 30,724,274,025.13
  5. Step 5: Solve for x
    x = 30,724,274,025.13/224,318.49
  6. Step 6: Final answer
    x = 136,967.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.