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Finding the Fourth Proportional to 84,892.40, 117,153.61 and 46,651.66

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Solution

The fourth proportional to 84,892.40, 117,153.61 and 46,651.66 is: 64,380.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,892.40 : 117,153.61 = 46,651.66 : x
  2. Step 2: Convert to fraction form
    84,892.40/117,153.61 = 46,651.66/x
  3. Step 3: Cross multiply
    84,892.40x = 117,153.61 × 46,651.66
  4. Step 4: Simplify right side
    84,892.40x = 5,465,410,381.49
  5. Step 5: Solve for x
    x = 5,465,410,381.49/84,892.40
  6. Step 6: Final answer
    x = 64,380.44

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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.