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Finding the Fourth Proportional to 393,156.75, 589,735.53 and 97,668.75

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Solution

The fourth proportional to 393,156.75, 589,735.53 and 97,668.75 is: 146,503.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,156.75 : 589,735.53 = 97,668.75 : x
  2. Step 2: Convert to fraction form
    393,156.75/589,735.53 = 97,668.75/x
  3. Step 3: Cross multiply
    393,156.75x = 589,735.53 × 97,668.75
  4. Step 4: Simplify right side
    393,156.75x = 57,598,732,045.69
  5. Step 5: Solve for x
    x = 57,598,732,045.69/393,156.75
  6. Step 6: Final answer
    x = 146,503.23

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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.