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Finding the Fourth Proportional to 248,321.98, 372,421.26 and 70,830.52

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Solution

The fourth proportional to 248,321.98, 372,421.26 and 70,830.52 is: 106,228.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,321.98 : 372,421.26 = 70,830.52 : x
  2. Step 2: Convert to fraction form
    248,321.98/372,421.26 = 70,830.52/x
  3. Step 3: Cross multiply
    248,321.98x = 372,421.26 × 70,830.52
  4. Step 4: Simplify right side
    248,321.98x = 26,378,791,504.86
  5. Step 5: Solve for x
    x = 26,378,791,504.86/248,321.98
  6. Step 6: Final answer
    x = 106,228.18

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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.