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Finding the Fourth Proportional to 442,773.55, 664,089.04 and 127,158.67

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Solution

The fourth proportional to 442,773.55, 664,089.04 and 127,158.67 is: 190,717.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,773.55 : 664,089.04 = 127,158.67 : x
  2. Step 2: Convert to fraction form
    442,773.55/664,089.04 = 127,158.67/x
  3. Step 3: Cross multiply
    442,773.55x = 664,089.04 × 127,158.67
  4. Step 4: Simplify right side
    442,773.55x = 84,444,679,087.98
  5. Step 5: Solve for x
    x = 84,444,679,087.98/442,773.55
  6. Step 6: Final answer
    x = 190,717.53

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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.