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Finding the Fourth Proportional to 76,296.40, 114,214.20 and 67,080.40

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Solution

The fourth proportional to 76,296.40, 114,214.20 and 67,080.40 is: 100,418.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,296.40 : 114,214.20 = 67,080.40 : x
  2. Step 2: Convert to fraction form
    76,296.40/114,214.20 = 67,080.40/x
  3. Step 3: Cross multiply
    76,296.40x = 114,214.20 × 67,080.40
  4. Step 4: Simplify right side
    76,296.40x = 7,661,534,221.68
  5. Step 5: Solve for x
    x = 7,661,534,221.68/76,296.40
  6. Step 6: Final answer
    x = 100,418.03

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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.