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Finding the Fourth Proportional to 333,009.32, 499,587.78 and 155,419.44

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Solution

The fourth proportional to 333,009.32, 499,587.78 and 155,419.44 is: 233,163.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,009.32 : 499,587.78 = 155,419.44 : x
  2. Step 2: Convert to fraction form
    333,009.32/499,587.78 = 155,419.44/x
  3. Step 3: Cross multiply
    333,009.32x = 499,587.78 × 155,419.44
  4. Step 4: Simplify right side
    333,009.32x = 77,645,652,998.44
  5. Step 5: Solve for x
    x = 77,645,652,998.44/333,009.32
  6. Step 6: Final answer
    x = 233,163.61

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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.