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Finding the Fourth Proportional to 143,251.22, 214,803.02 and 64,297.79

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Solution

The fourth proportional to 143,251.22, 214,803.02 and 64,297.79 is: 96,413.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,251.22 : 214,803.02 = 64,297.79 : x
  2. Step 2: Convert to fraction form
    143,251.22/214,803.02 = 64,297.79/x
  3. Step 3: Cross multiply
    143,251.22x = 214,803.02 × 64,297.79
  4. Step 4: Simplify right side
    143,251.22x = 13,811,358,075.82
  5. Step 5: Solve for x
    x = 13,811,358,075.82/143,251.22
  6. Step 6: Final answer
    x = 96,413.55

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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.