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Finding the Fourth Proportional to 389,548.88, 584,654.88 and 153,056.96

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Solution

The fourth proportional to 389,548.88, 584,654.88 and 153,056.96 is: 229,715.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,548.88 : 584,654.88 = 153,056.96 : x
  2. Step 2: Convert to fraction form
    389,548.88/584,654.88 = 153,056.96/x
  3. Step 3: Cross multiply
    389,548.88x = 584,654.88 × 153,056.96
  4. Step 4: Simplify right side
    389,548.88x = 89,485,498,581.96
  5. Step 5: Solve for x
    x = 89,485,498,581.96/389,548.88
  6. Step 6: Final answer
    x = 229,715.71

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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.