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Finding the Fourth Proportional to 341,569.80, 512,162.70 and 131,214.60

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Solution

The fourth proportional to 341,569.80, 512,162.70 and 131,214.60 is: 196,748.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,569.80 : 512,162.70 = 131,214.60 : x
  2. Step 2: Convert to fraction form
    341,569.80/512,162.70 = 131,214.60/x
  3. Step 3: Cross multiply
    341,569.80x = 512,162.70 × 131,214.60
  4. Step 4: Simplify right side
    341,569.80x = 67,203,223,815.42
  5. Step 5: Solve for x
    x = 67,203,223,815.42/341,569.80
  6. Step 6: Final answer
    x = 196,748.14

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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.