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Finding the Fourth Proportional to 201,107.94, 301,789.08 and 112,419.70

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Solution

The fourth proportional to 201,107.94, 301,789.08 and 112,419.70 is: 168,700.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,107.94 : 301,789.08 = 112,419.70 : x
  2. Step 2: Convert to fraction form
    201,107.94/301,789.08 = 112,419.70/x
  3. Step 3: Cross multiply
    201,107.94x = 301,789.08 × 112,419.70
  4. Step 4: Simplify right side
    201,107.94x = 33,927,037,836.88
  5. Step 5: Solve for x
    x = 33,927,037,836.88/201,107.94
  6. Step 6: Final answer
    x = 168,700.64

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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.