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Finding the Fourth Proportional to 214,567.79, 321,851.88 and 74,326.41

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Solution

The fourth proportional to 214,567.79, 321,851.88 and 74,326.41 is: 111,489.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,567.79 : 321,851.88 = 74,326.41 : x
  2. Step 2: Convert to fraction form
    214,567.79/321,851.88 = 74,326.41/x
  3. Step 3: Cross multiply
    214,567.79x = 321,851.88 × 74,326.41
  4. Step 4: Simplify right side
    214,567.79x = 23,922,094,792.15
  5. Step 5: Solve for x
    x = 23,922,094,792.15/214,567.79
  6. Step 6: Final answer
    x = 111,489.69

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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.