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Finding the Fourth Proportional to 230,734.57, 318,413.73 and 127,368.80

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Solution

The fourth proportional to 230,734.57, 318,413.73 and 127,368.80 is: 175,768.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,734.57 : 318,413.73 = 127,368.80 : x
  2. Step 2: Convert to fraction form
    230,734.57/318,413.73 = 127,368.80/x
  3. Step 3: Cross multiply
    230,734.57x = 318,413.73 × 127,368.80
  4. Step 4: Simplify right side
    230,734.57x = 40,555,974,693.62
  5. Step 5: Solve for x
    x = 40,555,974,693.62/230,734.57
  6. Step 6: Final answer
    x = 175,768.96

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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.