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Finding the Fourth Proportional to 341,543.83, 512,340.36 and 131,181.76

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Solution

The fourth proportional to 341,543.83, 512,340.36 and 131,181.76 is: 196,782.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,543.83 : 512,340.36 = 131,181.76 : x
  2. Step 2: Convert to fraction form
    341,543.83/512,340.36 = 131,181.76/x
  3. Step 3: Cross multiply
    341,543.83x = 512,340.36 × 131,181.76
  4. Step 4: Simplify right side
    341,543.83x = 67,209,710,143.83
  5. Step 5: Solve for x
    x = 67,209,710,143.83/341,543.83
  6. Step 6: Final answer
    x = 196,782.09

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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.