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Finding the Fourth Proportional to 170,413.65, 255,620.48 and 70,560.09

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Solution

The fourth proportional to 170,413.65, 255,620.48 and 70,560.09 is: 105,840.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,413.65 : 255,620.48 = 70,560.09 : x
  2. Step 2: Convert to fraction form
    170,413.65/255,620.48 = 70,560.09/x
  3. Step 3: Cross multiply
    170,413.65x = 255,620.48 × 70,560.09
  4. Step 4: Simplify right side
    170,413.65x = 18,036,603,721.84
  5. Step 5: Solve for x
    x = 18,036,603,721.84/170,413.65
  6. Step 6: Final answer
    x = 105,840.14

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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.