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Finding the Fourth Proportional to 111,353.58, 166,855.19 and 86,114.88

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Solution

The fourth proportional to 111,353.58, 166,855.19 and 86,114.88 is: 129,036.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,353.58 : 166,855.19 = 86,114.88 : x
  2. Step 2: Convert to fraction form
    111,353.58/166,855.19 = 86,114.88/x
  3. Step 3: Cross multiply
    111,353.58x = 166,855.19 × 86,114.88
  4. Step 4: Simplify right side
    111,353.58x = 14,368,714,233.65
  5. Step 5: Solve for x
    x = 14,368,714,233.65/111,353.58
  6. Step 6: Final answer
    x = 129,036.84

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1.5x scale

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.