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Finding the Fourth Proportional to 302,811.59, 417,889.47 and 173,773.67

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Solution

The fourth proportional to 302,811.59, 417,889.47 and 173,773.67 is: 239,813.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,811.59 : 417,889.47 = 173,773.67 : x
  2. Step 2: Convert to fraction form
    302,811.59/417,889.47 = 173,773.67/x
  3. Step 3: Cross multiply
    302,811.59x = 417,889.47 × 173,773.67
  4. Step 4: Simplify right side
    302,811.59x = 72,618,187,900.98
  5. Step 5: Solve for x
    x = 72,618,187,900.98/302,811.59
  6. Step 6: Final answer
    x = 239,813.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.