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Finding the Fourth Proportional to 285,600.70, 428,518.59 and 125,594.29

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Solution

The fourth proportional to 285,600.70, 428,518.59 and 125,594.29 is: 188,443.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,600.70 : 428,518.59 = 125,594.29 : x
  2. Step 2: Convert to fraction form
    285,600.70/428,518.59 = 125,594.29/x
  3. Step 3: Cross multiply
    285,600.70x = 428,518.59 × 125,594.29
  4. Step 4: Simplify right side
    285,600.70x = 53,819,488,062.85
  5. Step 5: Solve for x
    x = 53,819,488,062.85/285,600.70
  6. Step 6: Final answer
    x = 188,443.12

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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.