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Finding the Fourth Proportional to 341,409.40, 512,138.40 and 104,751.70

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Solution

The fourth proportional to 341,409.40, 512,138.40 and 104,751.70 is: 157,135.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,409.40 : 512,138.40 = 104,751.70 : x
  2. Step 2: Convert to fraction form
    341,409.40/512,138.40 = 104,751.70/x
  3. Step 3: Cross multiply
    341,409.40x = 512,138.40 × 104,751.70
  4. Step 4: Simplify right side
    341,409.40x = 53,647,368,035.28
  5. Step 5: Solve for x
    x = 53,647,368,035.28/341,409.40
  6. Step 6: Final answer
    x = 157,135.01

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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.