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Finding the Fourth Proportional to 221,625.64, 332,438.44 and 55,413.64

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Solution

The fourth proportional to 221,625.64, 332,438.44 and 55,413.64 is: 83,120.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,625.64 : 332,438.44 = 55,413.64 : x
  2. Step 2: Convert to fraction form
    221,625.64/332,438.44 = 55,413.64/x
  3. Step 3: Cross multiply
    221,625.64x = 332,438.44 × 55,413.64
  4. Step 4: Simplify right side
    221,625.64x = 18,421,624,036.32
  5. Step 5: Solve for x
    x = 18,421,624,036.32/221,625.64
  6. Step 6: Final answer
    x = 83,120.45

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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.