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Finding the Fourth Proportional to 111,413.90, 167,178.29 and 73,999.86

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Solution

The fourth proportional to 111,413.90, 167,178.29 and 73,999.86 is: 111,037.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,413.90 : 167,178.29 = 73,999.86 : x
  2. Step 2: Convert to fraction form
    111,413.90/167,178.29 = 73,999.86/x
  3. Step 3: Cross multiply
    111,413.90x = 167,178.29 × 73,999.86
  4. Step 4: Simplify right side
    111,413.90x = 12,371,169,685.04
  5. Step 5: Solve for x
    x = 12,371,169,685.04/111,413.90
  6. Step 6: Final answer
    x = 111,037.94

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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.