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Finding the Fourth Proportional to 231,592, 319,596.96 and 130,987.84

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Solution

The fourth proportional to 231,592, 319,596.96 and 130,987.84 is: 180,763.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,592 : 319,596.96 = 130,987.84 : x
  2. Step 2: Convert to fraction form
    231,592/319,596.96 = 130,987.84/x
  3. Step 3: Cross multiply
    231,592x = 319,596.96 × 130,987.84
  4. Step 4: Simplify right side
    231,592x = 41,863,315,460.97
  5. Step 5: Solve for x
    x = 41,863,315,460.97/231,592
  6. Step 6: Final answer
    x = 180,763.22

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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.