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Finding the Fourth Proportional to 248,670, 372,562.74 and 143,271.18

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Solution

The fourth proportional to 248,670, 372,562.74 and 143,271.18 is: 214,651.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,670 : 372,562.74 = 143,271.18 : x
  2. Step 2: Convert to fraction form
    248,670/372,562.74 = 143,271.18/x
  3. Step 3: Cross multiply
    248,670x = 372,562.74 × 143,271.18
  4. Step 4: Simplify right side
    248,670x = 53,377,503,383.83
  5. Step 5: Solve for x
    x = 53,377,503,383.83/248,670
  6. Step 6: Final answer
    x = 214,651.96

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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.