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Finding the Fourth Proportional to 350,869.51, 526,299.67 and 84,628.05

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Solution

The fourth proportional to 350,869.51, 526,299.67 and 84,628.05 is: 126,940.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,869.51 : 526,299.67 = 84,628.05 : x
  2. Step 2: Convert to fraction form
    350,869.51/526,299.67 = 84,628.05/x
  3. Step 3: Cross multiply
    350,869.51x = 526,299.67 × 84,628.05
  4. Step 4: Simplify right side
    350,869.51x = 44,539,714,787.74
  5. Step 5: Solve for x
    x = 44,539,714,787.74/350,869.51
  6. Step 6: Final answer
    x = 126,940.97

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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.