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Finding the Fourth Proportional to 355,166.91, 532,960.55 and 130,684.98

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Solution

The fourth proportional to 355,166.91, 532,960.55 and 130,684.98 is: 196,104.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,166.91 : 532,960.55 = 130,684.98 : x
  2. Step 2: Convert to fraction form
    355,166.91/532,960.55 = 130,684.98/x
  3. Step 3: Cross multiply
    355,166.91x = 532,960.55 × 130,684.98
  4. Step 4: Simplify right side
    355,166.91x = 69,649,939,719.53
  5. Step 5: Solve for x
    x = 69,649,939,719.53/355,166.91
  6. Step 6: Final answer
    x = 196,104.81

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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.