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Finding the Fourth Proportional to 99,034.99, 148,175.22 and 87,093.97

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Solution

The fourth proportional to 99,034.99, 148,175.22 and 87,093.97 is: 130,309.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,034.99 : 148,175.22 = 87,093.97 : x
  2. Step 2: Convert to fraction form
    99,034.99/148,175.22 = 87,093.97/x
  3. Step 3: Cross multiply
    99,034.99x = 148,175.22 × 87,093.97
  4. Step 4: Simplify right side
    99,034.99x = 12,905,168,165.42
  5. Step 5: Solve for x
    x = 12,905,168,165.42/99,034.99
  6. Step 6: Final answer
    x = 130,309.18

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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.