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Finding the Fourth Proportional to 545,903.40, 818,709.30 and 166,823.40

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Solution

The fourth proportional to 545,903.40, 818,709.30 and 166,823.40 is: 250,190.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,903.40 : 818,709.30 = 166,823.40 : x
  2. Step 2: Convert to fraction form
    545,903.40/818,709.30 = 166,823.40/x
  3. Step 3: Cross multiply
    545,903.40x = 818,709.30 × 166,823.40
  4. Step 4: Simplify right side
    545,903.40x = 136,579,869,037.62
  5. Step 5: Solve for x
    x = 136,579,869,037.62/545,903.40
  6. Step 6: Final answer
    x = 250,190.54

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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.