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Finding the Fourth Proportional to 199,343.94, 299,015.91 and 136,824.90

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Solution

The fourth proportional to 199,343.94, 299,015.91 and 136,824.90 is: 205,237.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,343.94 : 299,015.91 = 136,824.90 : x
  2. Step 2: Convert to fraction form
    199,343.94/299,015.91 = 136,824.90/x
  3. Step 3: Cross multiply
    199,343.94x = 299,015.91 × 136,824.90
  4. Step 4: Simplify right side
    199,343.94x = 40,912,821,984.16
  5. Step 5: Solve for x
    x = 40,912,821,984.16/199,343.94
  6. Step 6: Final answer
    x = 205,237.35

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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.