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Finding the Fourth Proportional to 248,355.34, 372,546.78 and 70,848.70

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Solution

The fourth proportional to 248,355.34, 372,546.78 and 70,848.70 is: 106,276.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,355.34 : 372,546.78 = 70,848.70 : x
  2. Step 2: Convert to fraction form
    248,355.34/372,546.78 = 70,848.70/x
  3. Step 3: Cross multiply
    248,355.34x = 372,546.78 × 70,848.70
  4. Step 4: Simplify right side
    248,355.34x = 26,394,455,052.19
  5. Step 5: Solve for x
    x = 26,394,455,052.19/248,355.34
  6. Step 6: Final answer
    x = 106,276.98

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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.