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Finding the Fourth Proportional to 347,636.43, 521,648.40 and 187,708.98

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Solution

The fourth proportional to 347,636.43, 521,648.40 and 187,708.98 is: 281,668.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,636.43 : 521,648.40 = 187,708.98 : x
  2. Step 2: Convert to fraction form
    347,636.43/521,648.40 = 187,708.98/x
  3. Step 3: Cross multiply
    347,636.43x = 521,648.40 × 187,708.98
  4. Step 4: Simplify right side
    347,636.43x = 97,918,089,082.63
  5. Step 5: Solve for x
    x = 97,918,089,082.63/347,636.43
  6. Step 6: Final answer
    x = 281,668.09

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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.