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Finding the Fourth Proportional to 301,041.99, 451,562.85 and 90,679.93

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Solution

The fourth proportional to 301,041.99, 451,562.85 and 90,679.93 is: 136,019.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,041.99 : 451,562.85 = 90,679.93 : x
  2. Step 2: Convert to fraction form
    301,041.99/451,562.85 = 90,679.93/x
  3. Step 3: Cross multiply
    301,041.99x = 451,562.85 × 90,679.93
  4. Step 4: Simplify right side
    301,041.99x = 40,947,686,499.69
  5. Step 5: Solve for x
    x = 40,947,686,499.69/301,041.99
  6. Step 6: Final answer
    x = 136,019.85

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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.