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Finding the Fourth Proportional to 127,413.38, 191,267.71 and 68,364.38

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Solution

The fourth proportional to 127,413.38, 191,267.71 and 68,364.38 is: 102,625.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,413.38 : 191,267.71 = 68,364.38 : x
  2. Step 2: Convert to fraction form
    127,413.38/191,267.71 = 68,364.38/x
  3. Step 3: Cross multiply
    127,413.38x = 191,267.71 × 68,364.38
  4. Step 4: Simplify right side
    127,413.38x = 13,075,899,099.98
  5. Step 5: Solve for x
    x = 13,075,899,099.98/127,413.38
  6. Step 6: Final answer
    x = 102,625.79

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1.5x scale

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.