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Finding the Fourth Proportional to 416,812.58, 625,271.87 and 132,401.67

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Solution

The fourth proportional to 416,812.58, 625,271.87 and 132,401.67 is: 198,619.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,812.58 : 625,271.87 = 132,401.67 : x
  2. Step 2: Convert to fraction form
    416,812.58/625,271.87 = 132,401.67/x
  3. Step 3: Cross multiply
    416,812.58x = 625,271.87 × 132,401.67
  4. Step 4: Simplify right side
    416,812.58x = 82,787,039,130.01
  5. Step 5: Solve for x
    x = 82,787,039,130.01/416,812.58
  6. Step 6: Final answer
    x = 198,619.34

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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.