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Finding the Fourth Proportional to 545,879.28, 818,943.54 and 166,853.94

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Solution

The fourth proportional to 545,879.28, 818,943.54 and 166,853.94 is: 250,319.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,879.28 : 818,943.54 = 166,853.94 : x
  2. Step 2: Convert to fraction form
    545,879.28/818,943.54 = 166,853.94/x
  3. Step 3: Cross multiply
    545,879.28x = 818,943.54 × 166,853.94
  4. Step 4: Simplify right side
    545,879.28x = 136,643,956,286.55
  5. Step 5: Solve for x
    x = 136,643,956,286.55/545,879.28
  6. Step 6: Final answer
    x = 250,319.00

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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.