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Finding the Fourth Proportional to 333,892.24, 500,831.06 and 81,174.06

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Solution

The fourth proportional to 333,892.24, 500,831.06 and 81,174.06 is: 121,759.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,892.24 : 500,831.06 = 81,174.06 : x
  2. Step 2: Convert to fraction form
    333,892.24/500,831.06 = 81,174.06/x
  3. Step 3: Cross multiply
    333,892.24x = 500,831.06 × 81,174.06
  4. Step 4: Simplify right side
    333,892.24x = 40,654,490,514.30
  5. Step 5: Solve for x
    x = 40,654,490,514.30/333,892.24
  6. Step 6: Final answer
    x = 121,759.32

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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.