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Finding the Fourth Proportional to 218,048.84, 300,935.22 and 133,148.04

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Solution

The fourth proportional to 218,048.84, 300,935.22 and 133,148.04 is: 183,761.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,048.84 : 300,935.22 = 133,148.04 : x
  2. Step 2: Convert to fraction form
    218,048.84/300,935.22 = 133,148.04/x
  3. Step 3: Cross multiply
    218,048.84x = 300,935.22 × 133,148.04
  4. Step 4: Simplify right side
    218,048.84x = 40,068,934,709.97
  5. Step 5: Solve for x
    x = 40,068,934,709.97/218,048.84
  6. Step 6: Final answer
    x = 183,761.28

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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.