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Finding the Fourth Proportional to 99,087.75, 148,631.63 and 28,967.06

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Solution

The fourth proportional to 99,087.75, 148,631.63 and 28,967.06 is: 43,450.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,087.75 : 148,631.63 = 28,967.06 : x
  2. Step 2: Convert to fraction form
    99,087.75/148,631.63 = 28,967.06/x
  3. Step 3: Cross multiply
    99,087.75x = 148,631.63 × 28,967.06
  4. Step 4: Simplify right side
    99,087.75x = 4,305,421,570.85
  5. Step 5: Solve for x
    x = 4,305,421,570.85/99,087.75
  6. Step 6: Final answer
    x = 43,450.59

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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.