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Finding the Fourth Proportional to 362,671.20, 543,812.40 and 152,071.20

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Solution

The fourth proportional to 362,671.20, 543,812.40 and 152,071.20 is: 228,025.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,671.20 : 543,812.40 = 152,071.20 : x
  2. Step 2: Convert to fraction form
    362,671.20/543,812.40 = 152,071.20/x
  3. Step 3: Cross multiply
    362,671.20x = 543,812.40 × 152,071.20
  4. Step 4: Simplify right side
    362,671.20x = 82,698,204,242.88
  5. Step 5: Solve for x
    x = 82,698,204,242.88/362,671.20
  6. Step 6: Final answer
    x = 228,025.29

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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.