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Finding the Fourth Proportional to 445,475.58, 668,203.25 and 108,518.01

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Solution

The fourth proportional to 445,475.58, 668,203.25 and 108,518.01 is: 162,774.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,475.58 : 668,203.25 = 108,518.01 : x
  2. Step 2: Convert to fraction form
    445,475.58/668,203.25 = 108,518.01/x
  3. Step 3: Cross multiply
    445,475.58x = 668,203.25 × 108,518.01
  4. Step 4: Simplify right side
    445,475.58x = 72,512,086,422.94
  5. Step 5: Solve for x
    x = 72,512,086,422.94/445,475.58
  6. Step 6: Final answer
    x = 162,774.55

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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.