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Finding the Fourth Proportional to 270,607.79, 373,413.35 and 161,690.42

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Solution

The fourth proportional to 270,607.79, 373,413.35 and 161,690.42 is: 223,117.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,607.79 : 373,413.35 = 161,690.42 : x
  2. Step 2: Convert to fraction form
    270,607.79/373,413.35 = 161,690.42/x
  3. Step 3: Cross multiply
    270,607.79x = 373,413.35 × 161,690.42
  4. Step 4: Simplify right side
    270,607.79x = 60,377,362,732.87
  5. Step 5: Solve for x
    x = 60,377,362,732.87/270,607.79
  6. Step 6: Final answer
    x = 223,117.61

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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.