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Finding the Fourth Proportional to 333,398.63, 500,141.88 and 108,680.33

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Solution

The fourth proportional to 333,398.63, 500,141.88 and 108,680.33 is: 163,034.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,398.63 : 500,141.88 = 108,680.33 : x
  2. Step 2: Convert to fraction form
    333,398.63/500,141.88 = 108,680.33/x
  3. Step 3: Cross multiply
    333,398.63x = 500,141.88 × 108,680.33
  4. Step 4: Simplify right side
    333,398.63x = 54,355,582,064.51
  5. Step 5: Solve for x
    x = 54,355,582,064.51/333,398.63
  6. Step 6: Final answer
    x = 163,034.81

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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.