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Finding the Fourth Proportional to 179,401, 247,573.38 and 99,913

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Solution

The fourth proportional to 179,401, 247,573.38 and 99,913 is: 137,879.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,401 : 247,573.38 = 99,913 : x
  2. Step 2: Convert to fraction form
    179,401/247,573.38 = 99,913/x
  3. Step 3: Cross multiply
    179,401x = 247,573.38 × 99,913
  4. Step 4: Simplify right side
    179,401x = 24,735,799,115.94
  5. Step 5: Solve for x
    x = 24,735,799,115.94/179,401
  6. Step 6: Final answer
    x = 137,879.94

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1.5x scale

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.