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Finding the Fourth Proportional to 389,600.10, 584,163.62 and 152,658.90

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Solution

The fourth proportional to 389,600.10, 584,163.62 and 152,658.90 is: 228,895.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,600.10 : 584,163.62 = 152,658.90 : x
  2. Step 2: Convert to fraction form
    389,600.10/584,163.62 = 152,658.90/x
  3. Step 3: Cross multiply
    389,600.10x = 584,163.62 × 152,658.90
  4. Step 4: Simplify right side
    389,600.10x = 89,177,775,649.22
  5. Step 5: Solve for x
    x = 89,177,775,649.22/389,600.10
  6. Step 6: Final answer
    x = 228,895.67

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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.