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Finding the Fourth Proportional to 389,503.11, 584,254.67 and 94,015.11

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Solution

The fourth proportional to 389,503.11, 584,254.67 and 94,015.11 is: 141,022.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,503.11 : 584,254.67 = 94,015.11 : x
  2. Step 2: Convert to fraction form
    389,503.11/584,254.67 = 94,015.11/x
  3. Step 3: Cross multiply
    389,503.11x = 584,254.67 × 94,015.11
  4. Step 4: Simplify right side
    389,503.11x = 54,928,766,597.99
  5. Step 5: Solve for x
    x = 54,928,766,597.99/389,503.11
  6. Step 6: Final answer
    x = 141,022.67

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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.