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Finding the Fourth Proportional to 101,089.91, 151,666.49 and 30,012.95

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Solution

The fourth proportional to 101,089.91, 151,666.49 and 30,012.95 is: 45,028.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,089.91 : 151,666.49 = 30,012.95 : x
  2. Step 2: Convert to fraction form
    101,089.91/151,666.49 = 30,012.95/x
  3. Step 3: Cross multiply
    101,089.91x = 151,666.49 × 30,012.95
  4. Step 4: Simplify right side
    101,089.91x = 4,551,959,235.24
  5. Step 5: Solve for x
    x = 4,551,959,235.24/101,089.91
  6. Step 6: Final answer
    x = 45,028.82

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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.