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Finding the Fourth Proportional to 222,488.30, 333,841.80 and 104,139.20

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Solution

The fourth proportional to 222,488.30, 333,841.80 and 104,139.20 is: 156,259.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,488.30 : 333,841.80 = 104,139.20 : x
  2. Step 2: Convert to fraction form
    222,488.30/333,841.80 = 104,139.20/x
  3. Step 3: Cross multiply
    222,488.30x = 333,841.80 × 104,139.20
  4. Step 4: Simplify right side
    222,488.30x = 34,766,017,978.56
  5. Step 5: Solve for x
    x = 34,766,017,978.56/222,488.30
  6. Step 6: Final answer
    x = 156,259.98

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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.