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Finding the Fourth Proportional to 442,768.55, 664,081.55 and 127,153.67

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Solution

The fourth proportional to 442,768.55, 664,081.55 and 127,153.67 is: 190,710.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,768.55 : 664,081.55 = 127,153.67 : x
  2. Step 2: Convert to fraction form
    442,768.55/664,081.55 = 127,153.67/x
  3. Step 3: Cross multiply
    442,768.55x = 664,081.55 × 127,153.67
  4. Step 4: Simplify right side
    442,768.55x = 84,440,405,626.02
  5. Step 5: Solve for x
    x = 84,440,405,626.02/442,768.55
  6. Step 6: Final answer
    x = 190,710.03

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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.