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Finding the Fourth Proportional to 362,125.80, 543,188.70 and 228,281.40

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Solution

The fourth proportional to 362,125.80, 543,188.70 and 228,281.40 is: 342,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,125.80 : 543,188.70 = 228,281.40 : x
  2. Step 2: Convert to fraction form
    362,125.80/543,188.70 = 228,281.40/x
  3. Step 3: Cross multiply
    362,125.80x = 543,188.70 × 228,281.40
  4. Step 4: Simplify right side
    362,125.80x = 123,999,876,900.18
  5. Step 5: Solve for x
    x = 123,999,876,900.18/362,125.80
  6. Step 6: Final answer
    x = 342,422.10

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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.