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Finding the Fourth Proportional to 325,917.99, 489,625.43 and 230,075.55

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Solution

The fourth proportional to 325,917.99, 489,625.43 and 230,075.55 is: 345,641.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,917.99 : 489,625.43 = 230,075.55 : x
  2. Step 2: Convert to fraction form
    325,917.99/489,625.43 = 230,075.55/x
  3. Step 3: Cross multiply
    325,917.99x = 489,625.43 × 230,075.55
  4. Step 4: Simplify right side
    325,917.99x = 112,650,838,950.86
  5. Step 5: Solve for x
    x = 112,650,838,950.86/325,917.99
  6. Step 6: Final answer
    x = 345,641.67

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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.