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Finding the Fourth Proportional to 125,830.98, 188,609.58 and 62,697.75

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Solution

The fourth proportional to 125,830.98, 188,609.58 and 62,697.75 is: 93,978.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,830.98 : 188,609.58 = 62,697.75 : x
  2. Step 2: Convert to fraction form
    125,830.98/188,609.58 = 62,697.75/x
  3. Step 3: Cross multiply
    125,830.98x = 188,609.58 × 62,697.75
  4. Step 4: Simplify right side
    125,830.98x = 11,825,396,294.45
  5. Step 5: Solve for x
    x = 11,825,396,294.45/125,830.98
  6. Step 6: Final answer
    x = 93,978.42

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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.