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Finding the Fourth Proportional to 248,295.12, 372,477.69 and 79,758.93

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Solution

The fourth proportional to 248,295.12, 372,477.69 and 79,758.93 is: 119,649.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,295.12 : 372,477.69 = 79,758.93 : x
  2. Step 2: Convert to fraction form
    248,295.12/372,477.69 = 79,758.93/x
  3. Step 3: Cross multiply
    248,295.12x = 372,477.69 × 79,758.93
  4. Step 4: Simplify right side
    248,295.12x = 29,708,422,003.27
  5. Step 5: Solve for x
    x = 29,708,422,003.27/248,295.12
  6. Step 6: Final answer
    x = 119,649.64

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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.