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Finding the Fourth Proportional to 619,333.60, 929,027.40 and 170,042.80

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Solution

The fourth proportional to 619,333.60, 929,027.40 and 170,042.80 is: 255,071.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,333.60 : 929,027.40 = 170,042.80 : x
  2. Step 2: Convert to fraction form
    619,333.60/929,027.40 = 170,042.80/x
  3. Step 3: Cross multiply
    619,333.60x = 929,027.40 × 170,042.80
  4. Step 4: Simplify right side
    619,333.60x = 157,974,420,372.72
  5. Step 5: Solve for x
    x = 157,974,420,372.72/619,333.60
  6. Step 6: Final answer
    x = 255,071.61

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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.