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Finding the Fourth Proportional to 432,880.98, 649,321.48 and 117,337.89

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Solution

The fourth proportional to 432,880.98, 649,321.48 and 117,337.89 is: 176,006.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,880.98 : 649,321.48 = 117,337.89 : x
  2. Step 2: Convert to fraction form
    432,880.98/649,321.48 = 117,337.89/x
  3. Step 3: Cross multiply
    432,880.98x = 649,321.48 × 117,337.89
  4. Step 4: Simplify right side
    432,880.98x = 76,190,012,655.27
  5. Step 5: Solve for x
    x = 76,190,012,655.27/432,880.98
  6. Step 6: Final answer
    x = 176,006.84

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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.