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Finding the Fourth Proportional to 395,241.69, 592,957.01 and 129,002.70

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Solution

The fourth proportional to 395,241.69, 592,957.01 and 129,002.70 is: 193,534.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,241.69 : 592,957.01 = 129,002.70 : x
  2. Step 2: Convert to fraction form
    395,241.69/592,957.01 = 129,002.70/x
  3. Step 3: Cross multiply
    395,241.69x = 592,957.01 × 129,002.70
  4. Step 4: Simplify right side
    395,241.69x = 76,493,055,596.43
  5. Step 5: Solve for x
    x = 76,493,055,596.43/395,241.69
  6. Step 6: Final answer
    x = 193,534.89

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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.