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Finding the Fourth Proportional to 373,855.53, 515,922.73 and 212,710.58

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Solution

The fourth proportional to 373,855.53, 515,922.73 and 212,710.58 is: 293,541.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,855.53 : 515,922.73 = 212,710.58 : x
  2. Step 2: Convert to fraction form
    373,855.53/515,922.73 = 212,710.58/x
  3. Step 3: Cross multiply
    373,855.53x = 515,922.73 × 212,710.58
  4. Step 4: Simplify right side
    373,855.53x = 109,742,220,273.88
  5. Step 5: Solve for x
    x = 109,742,220,273.88/373,855.53
  6. Step 6: Final answer
    x = 293,541.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.