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Finding the Fourth Proportional to 228,636.92, 315,413.92 and 148,091.34

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Solution

The fourth proportional to 228,636.92, 315,413.92 and 148,091.34 is: 204,298.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,636.92 : 315,413.92 = 148,091.34 : x
  2. Step 2: Convert to fraction form
    228,636.92/315,413.92 = 148,091.34/x
  3. Step 3: Cross multiply
    228,636.92x = 315,413.92 × 148,091.34
  4. Step 4: Simplify right side
    228,636.92x = 46,710,070,067.45
  5. Step 5: Solve for x
    x = 46,710,070,067.45/228,636.92
  6. Step 6: Final answer
    x = 204,298.02

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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.