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Finding the Fourth Proportional to 147,632.80, 221,413.20 and 42,440.80

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Solution

The fourth proportional to 147,632.80, 221,413.20 and 42,440.80 is: 63,650.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,632.80 : 221,413.20 = 42,440.80 : x
  2. Step 2: Convert to fraction form
    147,632.80/221,413.20 = 42,440.80/x
  3. Step 3: Cross multiply
    147,632.80x = 221,413.20 × 42,440.80
  4. Step 4: Simplify right side
    147,632.80x = 9,396,953,338.56
  5. Step 5: Solve for x
    x = 9,396,953,338.56/147,632.80
  6. Step 6: Final answer
    x = 63,650.85

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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.