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Finding the Fourth Proportional to 365,945.76, 548,806.59 and 129,232.98

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Solution

The fourth proportional to 365,945.76, 548,806.59 and 129,232.98 is: 193,809.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,945.76 : 548,806.59 = 129,232.98 : x
  2. Step 2: Convert to fraction form
    365,945.76/548,806.59 = 129,232.98/x
  3. Step 3: Cross multiply
    365,945.76x = 548,806.59 × 129,232.98
  4. Step 4: Simplify right side
    365,945.76x = 70,923,911,069.34
  5. Step 5: Solve for x
    x = 70,923,911,069.34/365,945.76
  6. Step 6: Final answer
    x = 193,809.90

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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.