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Finding the Fourth Proportional to 251,567.40, 376,947.90 and 133,084.20

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Solution

The fourth proportional to 251,567.40, 376,947.90 and 133,084.20 is: 199,413.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,567.40 : 376,947.90 = 133,084.20 : x
  2. Step 2: Convert to fraction form
    251,567.40/376,947.90 = 133,084.20/x
  3. Step 3: Cross multiply
    251,567.40x = 376,947.90 × 133,084.20
  4. Step 4: Simplify right side
    251,567.40x = 50,165,809,713.18
  5. Step 5: Solve for x
    x = 50,165,809,713.18/251,567.40
  6. Step 6: Final answer
    x = 199,413.00

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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.