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Finding the Fourth Proportional to 295,272, 407,497.26 and 167,988.60

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Solution

The fourth proportional to 295,272, 407,497.26 and 167,988.60 is: 231,836.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,272 : 407,497.26 = 167,988.60 : x
  2. Step 2: Convert to fraction form
    295,272/407,497.26 = 167,988.60/x
  3. Step 3: Cross multiply
    295,272x = 407,497.26 × 167,988.60
  4. Step 4: Simplify right side
    295,272x = 68,454,894,211.24
  5. Step 5: Solve for x
    x = 68,454,894,211.24/295,272
  6. Step 6: Final answer
    x = 231,836.73

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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.