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Finding the Fourth Proportional to 333,356.72, 500,065.45 and 108,659.48

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Solution

The fourth proportional to 333,356.72, 500,065.45 and 108,659.48 is: 162,999.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,356.72 : 500,065.45 = 108,659.48 : x
  2. Step 2: Convert to fraction form
    333,356.72/500,065.45 = 108,659.48/x
  3. Step 3: Cross multiply
    333,356.72x = 500,065.45 × 108,659.48
  4. Step 4: Simplify right side
    333,356.72x = 54,336,848,990.99
  5. Step 5: Solve for x
    x = 54,336,848,990.99/333,356.72
  6. Step 6: Final answer
    x = 162,999.11

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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.