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Finding the Fourth Proportional to 341,530.91, 512,320.96 and 131,168.84

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Solution

The fourth proportional to 341,530.91, 512,320.96 and 131,168.84 is: 196,762.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,530.91 : 512,320.96 = 131,168.84 : x
  2. Step 2: Convert to fraction form
    341,530.91/512,320.96 = 131,168.84/x
  3. Step 3: Cross multiply
    341,530.91x = 512,320.96 × 131,168.84
  4. Step 4: Simplify right side
    341,530.91x = 67,200,546,030.89
  5. Step 5: Solve for x
    x = 67,200,546,030.89/341,530.91
  6. Step 6: Final answer
    x = 196,762.71

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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.