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Finding the Fourth Proportional to 99,097.53, 148,645.83 and 28,020.03

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Solution

The fourth proportional to 99,097.53, 148,645.83 and 28,020.03 is: 42,029.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,097.53 : 148,645.83 = 28,020.03 : x
  2. Step 2: Convert to fraction form
    99,097.53/148,645.83 = 28,020.03/x
  3. Step 3: Cross multiply
    99,097.53x = 148,645.83 × 28,020.03
  4. Step 4: Simplify right side
    99,097.53x = 4,165,060,163.63
  5. Step 5: Solve for x
    x = 4,165,060,163.63/99,097.53
  6. Step 6: Final answer
    x = 42,029.91

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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.