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Finding the Fourth Proportional to 545,780.62, 818,795.54 and 166,755.30

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Solution

The fourth proportional to 545,780.62, 818,795.54 and 166,755.30 is: 250,171.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,780.62 : 818,795.54 = 166,755.30 : x
  2. Step 2: Convert to fraction form
    545,780.62/818,795.54 = 166,755.30/x
  3. Step 3: Cross multiply
    545,780.62x = 818,795.54 × 166,755.30
  4. Step 4: Simplify right side
    545,780.62x = 136,538,495,911.36
  5. Step 5: Solve for x
    x = 136,538,495,911.36/545,780.62
  6. Step 6: Final answer
    x = 250,171.02

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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.