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Finding the Fourth Proportional to 379,218.66, 568,862.01 and 98,738.34

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Solution

The fourth proportional to 379,218.66, 568,862.01 and 98,738.34 is: 148,116.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,218.66 : 568,862.01 = 98,738.34 : x
  2. Step 2: Convert to fraction form
    379,218.66/568,862.01 = 98,738.34/x
  3. Step 3: Cross multiply
    379,218.66x = 568,862.01 × 98,738.34
  4. Step 4: Simplify right side
    379,218.66x = 56,168,490,556.46
  5. Step 5: Solve for x
    x = 56,168,490,556.46/379,218.66
  6. Step 6: Final answer
    x = 148,116.37

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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.