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Finding the Fourth Proportional to 126,401, 174,433.38 and 69,816.02

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Solution

The fourth proportional to 126,401, 174,433.38 and 69,816.02 is: 96,346.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,401 : 174,433.38 = 69,816.02 : x
  2. Step 2: Convert to fraction form
    126,401/174,433.38 = 69,816.02/x
  3. Step 3: Cross multiply
    126,401x = 174,433.38 × 69,816.02
  4. Step 4: Simplify right side
    126,401x = 12,178,244,346.75
  5. Step 5: Solve for x
    x = 12,178,244,346.75/126,401
  6. Step 6: Final answer
    x = 96,346.11

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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.