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Finding the Fourth Proportional to 231,576, 319,574.88 and 125,592

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Solution

The fourth proportional to 231,576, 319,574.88 and 125,592 is: 173,316.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,576 : 319,574.88 = 125,592 : x
  2. Step 2: Convert to fraction form
    231,576/319,574.88 = 125,592/x
  3. Step 3: Cross multiply
    231,576x = 319,574.88 × 125,592
  4. Step 4: Simplify right side
    231,576x = 40,136,048,328.96
  5. Step 5: Solve for x
    x = 40,136,048,328.96/231,576
  6. Step 6: Final answer
    x = 173,316.96

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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.