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Finding the Fourth Proportional to 545,906.40, 818,713.80 and 166,826.40

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Solution

The fourth proportional to 545,906.40, 818,713.80 and 166,826.40 is: 250,195.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,906.40 : 818,713.80 = 166,826.40 : x
  2. Step 2: Convert to fraction form
    545,906.40/818,713.80 = 166,826.40/x
  3. Step 3: Cross multiply
    545,906.40x = 818,713.80 × 166,826.40
  4. Step 4: Simplify right side
    545,906.40x = 136,583,075,884.32
  5. Step 5: Solve for x
    x = 136,583,075,884.32/545,906.40
  6. Step 6: Final answer
    x = 250,195.04

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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.