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Finding the Fourth Proportional to 341,367.83, 512,117.80 and 130,989.41

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Solution

The fourth proportional to 341,367.83, 512,117.80 and 130,989.41 is: 196,509.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,367.83 : 512,117.80 = 130,989.41 : x
  2. Step 2: Convert to fraction form
    341,367.83/512,117.80 = 130,989.41/x
  3. Step 3: Cross multiply
    341,367.83x = 512,117.80 × 130,989.41
  4. Step 4: Simplify right side
    341,367.83x = 67,082,008,241.69
  5. Step 5: Solve for x
    x = 67,082,008,241.69/341,367.83
  6. Step 6: Final answer
    x = 196,509.46

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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.