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Finding the Fourth Proportional to 298,982.88, 412,598.88 and 171,656.64

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Solution

The fourth proportional to 298,982.88, 412,598.88 and 171,656.64 is: 236,887.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,982.88 : 412,598.88 = 171,656.64 : x
  2. Step 2: Convert to fraction form
    298,982.88/412,598.88 = 171,656.64/x
  3. Step 3: Cross multiply
    298,982.88x = 412,598.88 × 171,656.64
  4. Step 4: Simplify right side
    298,982.88x = 70,825,337,408.56
  5. Step 5: Solve for x
    x = 70,825,337,408.56/298,982.88
  6. Step 6: Final answer
    x = 236,887.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.