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Finding the Fourth Proportional to 251,671.30, 347,527.88 and 171,290.84

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Solution

The fourth proportional to 251,671.30, 347,527.88 and 171,290.84 is: 236,532.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,671.30 : 347,527.88 = 171,290.84 : x
  2. Step 2: Convert to fraction form
    251,671.30/347,527.88 = 171,290.84/x
  3. Step 3: Cross multiply
    251,671.30x = 347,527.88 × 171,290.84
  4. Step 4: Simplify right side
    251,671.30x = 59,528,342,488.62
  5. Step 5: Solve for x
    x = 59,528,342,488.62/251,671.30
  6. Step 6: Final answer
    x = 236,532.11

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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.