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Finding the Fourth Proportional to 436,799.96, 655,203.60 and 121,281.48

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Solution

The fourth proportional to 436,799.96, 655,203.60 and 121,281.48 is: 181,923.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,799.96 : 655,203.60 = 121,281.48 : x
  2. Step 2: Convert to fraction form
    436,799.96/655,203.60 = 121,281.48/x
  3. Step 3: Cross multiply
    436,799.96x = 655,203.60 × 121,281.48
  4. Step 4: Simplify right side
    436,799.96x = 79,464,062,309.33
  5. Step 5: Solve for x
    x = 79,464,062,309.33/436,799.96
  6. Step 6: Final answer
    x = 181,923.24

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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.