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Finding the Fourth Proportional to 363,905.80, 545,858.70 and 114,555.40

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Solution

The fourth proportional to 363,905.80, 545,858.70 and 114,555.40 is: 171,833.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,905.80 : 545,858.70 = 114,555.40 : x
  2. Step 2: Convert to fraction form
    363,905.80/545,858.70 = 114,555.40/x
  3. Step 3: Cross multiply
    363,905.80x = 545,858.70 × 114,555.40
  4. Step 4: Simplify right side
    363,905.80x = 62,531,061,721.98
  5. Step 5: Solve for x
    x = 62,531,061,721.98/363,905.80
  6. Step 6: Final answer
    x = 171,833.10

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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.