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Finding the Fourth Proportional to 111,107.58, 166,662.45 and 28,001.58

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Solution

The fourth proportional to 111,107.58, 166,662.45 and 28,001.58 is: 42,002.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,107.58 : 166,662.45 = 28,001.58 : x
  2. Step 2: Convert to fraction form
    111,107.58/166,662.45 = 28,001.58/x
  3. Step 3: Cross multiply
    111,107.58x = 166,662.45 × 28,001.58
  4. Step 4: Simplify right side
    111,107.58x = 4,666,811,926.67
  5. Step 5: Solve for x
    x = 4,666,811,926.67/111,107.58
  6. Step 6: Final answer
    x = 42,002.64

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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.