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Finding the Fourth Proportional to 355,380.14, 532,991.62 and 102,605.67

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Solution

The fourth proportional to 355,380.14, 532,991.62 and 102,605.67 is: 153,885.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,380.14 : 532,991.62 = 102,605.67 : x
  2. Step 2: Convert to fraction form
    355,380.14/532,991.62 = 102,605.67/x
  3. Step 3: Cross multiply
    355,380.14x = 532,991.62 × 102,605.67
  4. Step 4: Simplify right side
    355,380.14x = 54,687,962,274.49
  5. Step 5: Solve for x
    x = 54,687,962,274.49/355,380.14
  6. Step 6: Final answer
    x = 153,885.81

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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.