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Finding the Fourth Proportional to 86,622.75, 119,539.40 and 46,878.75

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Solution

The fourth proportional to 86,622.75, 119,539.40 and 46,878.75 is: 64,692.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,622.75 : 119,539.40 = 46,878.75 : x
  2. Step 2: Convert to fraction form
    86,622.75/119,539.40 = 46,878.75/x
  3. Step 3: Cross multiply
    86,622.75x = 119,539.40 × 46,878.75
  4. Step 4: Simplify right side
    86,622.75x = 5,603,857,413.36
  5. Step 5: Solve for x
    x = 5,603,857,413.36/86,622.75
  6. Step 6: Final answer
    x = 64,692.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.