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Finding the Fourth Proportional to 351,221.40, 526,950.36 and 111,374.64

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Solution

The fourth proportional to 351,221.40, 526,950.36 and 111,374.64 is: 167,099.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,221.40 : 526,950.36 = 111,374.64 : x
  2. Step 2: Convert to fraction form
    351,221.40/526,950.36 = 111,374.64/x
  3. Step 3: Cross multiply
    351,221.40x = 526,950.36 × 111,374.64
  4. Step 4: Simplify right side
    351,221.40x = 58,688,906,642.87
  5. Step 5: Solve for x
    x = 58,688,906,642.87/351,221.40
  6. Step 6: Final answer
    x = 167,099.46

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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.