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Finding the Fourth Proportional to 370,235.78, 555,375.20 and 104,017.05

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Solution

The fourth proportional to 370,235.78, 555,375.20 and 104,017.05 is: 156,031.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,235.78 : 555,375.20 = 104,017.05 : x
  2. Step 2: Convert to fraction form
    370,235.78/555,375.20 = 104,017.05/x
  3. Step 3: Cross multiply
    370,235.78x = 555,375.20 × 104,017.05
  4. Step 4: Simplify right side
    370,235.78x = 57,768,489,427.07
  5. Step 5: Solve for x
    x = 57,768,489,427.07/370,235.78
  6. Step 6: Final answer
    x = 156,031.62

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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.