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Finding the Fourth Proportional to 249,157.46, 373,790.69 and 80,694.81

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Solution

The fourth proportional to 249,157.46, 373,790.69 and 80,694.81 is: 121,059.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,157.46 : 373,790.69 = 80,694.81 : x
  2. Step 2: Convert to fraction form
    249,157.46/373,790.69 = 80,694.81/x
  3. Step 3: Cross multiply
    249,157.46x = 373,790.69 × 80,694.81
  4. Step 4: Simplify right side
    249,157.46x = 30,162,967,371.37
  5. Step 5: Solve for x
    x = 30,162,967,371.37/249,157.46
  6. Step 6: Final answer
    x = 121,059.86

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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.