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Finding the Fourth Proportional to 347,672.50, 521,728.14 and 147,992.58

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Solution

The fourth proportional to 347,672.50, 521,728.14 and 147,992.58 is: 222,082.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,672.50 : 521,728.14 = 147,992.58 : x
  2. Step 2: Convert to fraction form
    347,672.50/521,728.14 = 147,992.58/x
  3. Step 3: Cross multiply
    347,672.50x = 521,728.14 × 147,992.58
  4. Step 4: Simplify right side
    347,672.50x = 77,211,893,497.20
  5. Step 5: Solve for x
    x = 77,211,893,497.20/347,672.50
  6. Step 6: Final answer
    x = 222,082.26

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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.