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Finding the Fourth Proportional to 343,622, 515,442.72 and 94,304

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Solution

The fourth proportional to 343,622, 515,442.72 and 94,304 is: 141,458.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,622 : 515,442.72 = 94,304 : x
  2. Step 2: Convert to fraction form
    343,622/515,442.72 = 94,304/x
  3. Step 3: Cross multiply
    343,622x = 515,442.72 × 94,304
  4. Step 4: Simplify right side
    343,622x = 48,608,310,266.88
  5. Step 5: Solve for x
    x = 48,608,310,266.88/343,622
  6. Step 6: Final answer
    x = 141,458.67

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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.