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Finding the Fourth Proportional to 305,959.80, 458,761.50 and 118,752.60

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Solution

The fourth proportional to 305,959.80, 458,761.50 and 118,752.60 is: 178,059.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,959.80 : 458,761.50 = 118,752.60 : x
  2. Step 2: Convert to fraction form
    305,959.80/458,761.50 = 118,752.60/x
  3. Step 3: Cross multiply
    305,959.80x = 458,761.50 × 118,752.60
  4. Step 4: Simplify right side
    305,959.80x = 54,479,120,904.90
  5. Step 5: Solve for x
    x = 54,479,120,904.90/305,959.80
  6. Step 6: Final answer
    x = 178,059.73

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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.