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Finding the Fourth Proportional to 236,704, 326,654.08 and 129,277.12

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Solution

The fourth proportional to 236,704, 326,654.08 and 129,277.12 is: 178,403.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,704 : 326,654.08 = 129,277.12 : x
  2. Step 2: Convert to fraction form
    236,704/326,654.08 = 129,277.12/x
  3. Step 3: Cross multiply
    236,704x = 326,654.08 × 129,277.12
  4. Step 4: Simplify right side
    236,704x = 42,228,898,698.65
  5. Step 5: Solve for x
    x = 42,228,898,698.65/236,704
  6. Step 6: Final answer
    x = 178,403.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.