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Finding the Fourth Proportional to 432,147.81, 648,221.70 and 116,604.71

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Solution

The fourth proportional to 432,147.81, 648,221.70 and 116,604.71 is: 174,907.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,147.81 : 648,221.70 = 116,604.71 : x
  2. Step 2: Convert to fraction form
    432,147.81/648,221.70 = 116,604.71/x
  3. Step 3: Cross multiply
    432,147.81x = 648,221.70 × 116,604.71
  4. Step 4: Simplify right side
    432,147.81x = 75,585,703,344.21
  5. Step 5: Solve for x
    x = 75,585,703,344.21/432,147.81
  6. Step 6: Final answer
    x = 174,907.06

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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.