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Finding the Fourth Proportional to 253,601.05, 380,413.26 and 141,196.65

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Solution

The fourth proportional to 253,601.05, 380,413.26 and 141,196.65 is: 211,801.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,601.05 : 380,413.26 = 141,196.65 : x
  2. Step 2: Convert to fraction form
    253,601.05/380,413.26 = 141,196.65/x
  3. Step 3: Cross multiply
    253,601.05x = 380,413.26 × 141,196.65
  4. Step 4: Simplify right side
    253,601.05x = 53,713,077,927.58
  5. Step 5: Solve for x
    x = 53,713,077,927.58/253,601.05
  6. Step 6: Final answer
    x = 211,801.48

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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.