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Finding the Fourth Proportional to 362,737.20, 543,911.40 and 152,137.20

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Solution

The fourth proportional to 362,737.20, 543,911.40 and 152,137.20 is: 228,124.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,737.20 : 543,911.40 = 152,137.20 : x
  2. Step 2: Convert to fraction form
    362,737.20/543,911.40 = 152,137.20/x
  3. Step 3: Cross multiply
    362,737.20x = 543,911.40 × 152,137.20
  4. Step 4: Simplify right side
    362,737.20x = 82,749,157,444.08
  5. Step 5: Solve for x
    x = 82,749,157,444.08/362,737.20
  6. Step 6: Final answer
    x = 228,124.27

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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.