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Finding the Fourth Proportional to 437,157.92, 655,738.10 and 121,615.14

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Solution

The fourth proportional to 437,157.92, 655,738.10 and 121,615.14 is: 182,423.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,157.92 : 655,738.10 = 121,615.14 : x
  2. Step 2: Convert to fraction form
    437,157.92/655,738.10 = 121,615.14/x
  3. Step 3: Cross multiply
    437,157.92x = 655,738.10 × 121,615.14
  4. Step 4: Simplify right side
    437,157.92x = 79,747,680,834.83
  5. Step 5: Solve for x
    x = 79,747,680,834.83/437,157.92
  6. Step 6: Final answer
    x = 182,423.05

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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.