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Finding the Fourth Proportional to 225,021.60, 337,532.40 and 212,774.40

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Solution

The fourth proportional to 225,021.60, 337,532.40 and 212,774.40 is: 319,161.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,021.60 : 337,532.40 = 212,774.40 : x
  2. Step 2: Convert to fraction form
    225,021.60/337,532.40 = 212,774.40/x
  3. Step 3: Cross multiply
    225,021.60x = 337,532.40 × 212,774.40
  4. Step 4: Simplify right side
    225,021.60x = 71,818,253,890.56
  5. Step 5: Solve for x
    x = 71,818,253,890.56/225,021.60
  6. Step 6: Final answer
    x = 319,161.60

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1.5x scale

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.