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Finding the Fourth Proportional to 365,396.63, 548,030.21 and 99,177.84

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Solution

The fourth proportional to 365,396.63, 548,030.21 and 99,177.84 is: 148,749.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,396.63 : 548,030.21 = 99,177.84 : x
  2. Step 2: Convert to fraction form
    365,396.63/548,030.21 = 99,177.84/x
  3. Step 3: Cross multiply
    365,396.63x = 548,030.21 × 99,177.84
  4. Step 4: Simplify right side
    365,396.63x = 54,352,451,986.66
  5. Step 5: Solve for x
    x = 54,352,451,986.66/365,396.63
  6. Step 6: Final answer
    x = 148,749.19

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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.