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Finding the Fourth Proportional to 214,098.40, 321,050.40 and 80,934.40

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Solution

The fourth proportional to 214,098.40, 321,050.40 and 80,934.40 is: 121,364.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,098.40 : 321,050.40 = 80,934.40 : x
  2. Step 2: Convert to fraction form
    214,098.40/321,050.40 = 80,934.40/x
  3. Step 3: Cross multiply
    214,098.40x = 321,050.40 × 80,934.40
  4. Step 4: Simplify right side
    214,098.40x = 25,984,021,493.76
  5. Step 5: Solve for x
    x = 25,984,021,493.76/214,098.40
  6. Step 6: Final answer
    x = 121,364.86

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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.