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Finding the Fourth Proportional to 262,079.08, 361,644.14 and 153,208.87

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Solution

The fourth proportional to 262,079.08, 361,644.14 and 153,208.87 is: 211,413.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,079.08 : 361,644.14 = 153,208.87 : x
  2. Step 2: Convert to fraction form
    262,079.08/361,644.14 = 153,208.87/x
  3. Step 3: Cross multiply
    262,079.08x = 361,644.14 × 153,208.87
  4. Step 4: Simplify right side
    262,079.08x = 55,407,089,510.43
  5. Step 5: Solve for x
    x = 55,407,089,510.43/262,079.08
  6. Step 6: Final answer
    x = 211,413.63

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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.