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Finding the Fourth Proportional to 158,467.58, 218,684.01 and 86,847.44

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Solution

The fourth proportional to 158,467.58, 218,684.01 and 86,847.44 is: 119,848.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,467.58 : 218,684.01 = 86,847.44 : x
  2. Step 2: Convert to fraction form
    158,467.58/218,684.01 = 86,847.44/x
  3. Step 3: Cross multiply
    158,467.58x = 218,684.01 × 86,847.44
  4. Step 4: Simplify right side
    158,467.58x = 18,992,145,425.43
  5. Step 5: Solve for x
    x = 18,992,145,425.43/158,467.58
  6. Step 6: Final answer
    x = 119,848.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.