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Finding the Fourth Proportional to 341,570.40, 512,355.60 and 104,912.70

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Solution

The fourth proportional to 341,570.40, 512,355.60 and 104,912.70 is: 157,369.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,570.40 : 512,355.60 = 104,912.70 : x
  2. Step 2: Convert to fraction form
    341,570.40/512,355.60 = 104,912.70/x
  3. Step 3: Cross multiply
    341,570.40x = 512,355.60 × 104,912.70
  4. Step 4: Simplify right side
    341,570.40x = 53,752,609,356.12
  5. Step 5: Solve for x
    x = 53,752,609,356.12/341,570.40
  6. Step 6: Final answer
    x = 157,369.05

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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.