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Finding the Fourth Proportional to 333,656.40, 500,480.56 and 80,939.04

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Solution

The fourth proportional to 333,656.40, 500,480.56 and 80,939.04 is: 121,407.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,656.40 : 500,480.56 = 80,939.04 : x
  2. Step 2: Convert to fraction form
    333,656.40/500,480.56 = 80,939.04/x
  3. Step 3: Cross multiply
    333,656.40x = 500,480.56 × 80,939.04
  4. Step 4: Simplify right side
    333,656.40x = 40,508,416,065.06
  5. Step 5: Solve for x
    x = 40,508,416,065.06/333,656.40
  6. Step 6: Final answer
    x = 121,407.58

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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.