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Finding the Fourth Proportional to 304,439.81, 456,650.25 and 144,630.75

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Solution

The fourth proportional to 304,439.81, 456,650.25 and 144,630.75 is: 216,941.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,439.81 : 456,650.25 = 144,630.75 : x
  2. Step 2: Convert to fraction form
    304,439.81/456,650.25 = 144,630.75/x
  3. Step 3: Cross multiply
    304,439.81x = 456,650.25 × 144,630.75
  4. Step 4: Simplify right side
    304,439.81x = 66,045,668,145.19
  5. Step 5: Solve for x
    x = 66,045,668,145.19/304,439.81
  6. Step 6: Final answer
    x = 216,941.63

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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.