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Finding the Fourth Proportional to 353,261.43, 529,892.28 and 87,027.12

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Solution

The fourth proportional to 353,261.43, 529,892.28 and 87,027.12 is: 130,540.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,261.43 : 529,892.28 = 87,027.12 : x
  2. Step 2: Convert to fraction form
    353,261.43/529,892.28 = 87,027.12/x
  3. Step 3: Cross multiply
    353,261.43x = 529,892.28 × 87,027.12
  4. Step 4: Simplify right side
    353,261.43x = 46,114,999,038.63
  5. Step 5: Solve for x
    x = 46,114,999,038.63/353,261.43
  6. Step 6: Final answer
    x = 130,540.71

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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.