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Finding the Fourth Proportional to 432,861.93, 649,292.90 and 117,318.84

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Solution

The fourth proportional to 432,861.93, 649,292.90 and 117,318.84 is: 175,978.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,861.93 : 649,292.90 = 117,318.84 : x
  2. Step 2: Convert to fraction form
    432,861.93/649,292.90 = 117,318.84/x
  3. Step 3: Cross multiply
    432,861.93x = 649,292.90 × 117,318.84
  4. Step 4: Simplify right side
    432,861.93x = 76,174,286,826.79
  5. Step 5: Solve for x
    x = 76,174,286,826.79/432,861.93
  6. Step 6: Final answer
    x = 175,978.25

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Similar ratio
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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.