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Finding the Fourth Proportional to 111,141.34, 166,705.53 and 66,468.22

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Solution

The fourth proportional to 111,141.34, 166,705.53 and 66,468.22 is: 99,698.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,141.34 : 166,705.53 = 66,468.22 : x
  2. Step 2: Convert to fraction form
    111,141.34/166,705.53 = 66,468.22/x
  3. Step 3: Cross multiply
    111,141.34x = 166,705.53 × 66,468.22
  4. Step 4: Simplify right side
    111,141.34x = 11,080,619,843.26
  5. Step 5: Solve for x
    x = 11,080,619,843.26/111,141.34
  6. Step 6: Final answer
    x = 99,698.45

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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.