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Finding the Fourth Proportional to 79,669, 119,495.22 and 49,998.88

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Solution

The fourth proportional to 79,669, 119,495.22 and 49,998.88 is: 74,993.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,669 : 119,495.22 = 49,998.88 : x
  2. Step 2: Convert to fraction form
    79,669/119,495.22 = 49,998.88/x
  3. Step 3: Cross multiply
    79,669x = 119,495.22 × 49,998.88
  4. Step 4: Simplify right side
    79,669x = 5,974,627,165.35
  5. Step 5: Solve for x
    x = 5,974,627,165.35/79,669
  6. Step 6: Final answer
    x = 74,993.12

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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.