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Finding the Fourth Proportional to 619,771.70, 929,535.14 and 170,376.62

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Solution

The fourth proportional to 619,771.70, 929,535.14 and 170,376.62 is: 255,531.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,771.70 : 929,535.14 = 170,376.62 : x
  2. Step 2: Convert to fraction form
    619,771.70/929,535.14 = 170,376.62/x
  3. Step 3: Cross multiply
    619,771.70x = 929,535.14 × 170,376.62
  4. Step 4: Simplify right side
    619,771.70x = 158,371,051,102.69
  5. Step 5: Solve for x
    x = 158,371,051,102.69/619,771.70
  6. Step 6: Final answer
    x = 255,531.27

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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.