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Finding the Fourth Proportional to 111,001.70, 166,501.64 and 47,866.46

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Solution

The fourth proportional to 111,001.70, 166,501.64 and 47,866.46 is: 71,799.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,001.70 : 166,501.64 = 47,866.46 : x
  2. Step 2: Convert to fraction form
    111,001.70/166,501.64 = 47,866.46/x
  3. Step 3: Cross multiply
    111,001.70x = 166,501.64 × 47,866.46
  4. Step 4: Simplify right side
    111,001.70x = 7,969,844,090.99
  5. Step 5: Solve for x
    x = 7,969,844,090.99/111,001.70
  6. Step 6: Final answer
    x = 71,799.30

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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.