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Finding the Fourth Proportional to 150,301.98, 207,413.19 and 86,635.98

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Solution

The fourth proportional to 150,301.98, 207,413.19 and 86,635.98 is: 119,555.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,301.98 : 207,413.19 = 86,635.98 : x
  2. Step 2: Convert to fraction form
    150,301.98/207,413.19 = 86,635.98/x
  3. Step 3: Cross multiply
    150,301.98x = 207,413.19 × 86,635.98
  4. Step 4: Simplify right side
    150,301.98x = 17,969,444,980.58
  5. Step 5: Solve for x
    x = 17,969,444,980.58/150,301.98
  6. Step 6: Final answer
    x = 119,555.61

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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.