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Finding the Fourth Proportional to 355,049.12, 532,584.62 and 155,266.67

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Solution

The fourth proportional to 355,049.12, 532,584.62 and 155,266.67 is: 232,904.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,049.12 : 532,584.62 = 155,266.67 : x
  2. Step 2: Convert to fraction form
    355,049.12/532,584.62 = 155,266.67/x
  3. Step 3: Cross multiply
    355,049.12x = 532,584.62 × 155,266.67
  4. Step 4: Simplify right side
    355,049.12x = 82,692,640,440.62
  5. Step 5: Solve for x
    x = 82,692,640,440.62/355,049.12
  6. Step 6: Final answer
    x = 232,904.79

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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.