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Finding the Fourth Proportional to 294,531.07, 441,796.60 and 72,915.07

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Solution

The fourth proportional to 294,531.07, 441,796.60 and 72,915.07 is: 109,372.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,531.07 : 441,796.60 = 72,915.07 : x
  2. Step 2: Convert to fraction form
    294,531.07/441,796.60 = 72,915.07/x
  3. Step 3: Cross multiply
    294,531.07x = 441,796.60 × 72,915.07
  4. Step 4: Simplify right side
    294,531.07x = 32,213,627,441.20
  5. Step 5: Solve for x
    x = 32,213,627,441.20/294,531.07
  6. Step 6: Final answer
    x = 109,372.60

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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.