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Finding the Fourth Proportional to 126,287.44, 189,410.04 and 46,308.88

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Solution

The fourth proportional to 126,287.44, 189,410.04 and 46,308.88 is: 69,455.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,287.44 : 189,410.04 = 46,308.88 : x
  2. Step 2: Convert to fraction form
    126,287.44/189,410.04 = 46,308.88/x
  3. Step 3: Cross multiply
    126,287.44x = 189,410.04 × 46,308.88
  4. Step 4: Simplify right side
    126,287.44x = 8,771,366,813.16
  5. Step 5: Solve for x
    x = 8,771,366,813.16/126,287.44
  6. Step 6: Final answer
    x = 69,455.58

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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.