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Finding the Fourth Proportional to 99,675.64, 149,469.56 and 36,479.34

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Solution

The fourth proportional to 99,675.64, 149,469.56 and 36,479.34 is: 54,702.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,675.64 : 149,469.56 = 36,479.34 : x
  2. Step 2: Convert to fraction form
    99,675.64/149,469.56 = 36,479.34/x
  3. Step 3: Cross multiply
    99,675.64x = 149,469.56 × 36,479.34
  4. Step 4: Simplify right side
    99,675.64x = 5,452,550,898.89
  5. Step 5: Solve for x
    x = 5,452,550,898.89/99,675.64
  6. Step 6: Final answer
    x = 54,702.94

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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.