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Finding the Fourth Proportional to 347,656.97, 479,726.96 and 194,673.89

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Solution

The fourth proportional to 347,656.97, 479,726.96 and 194,673.89 is: 268,627.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,656.97 : 479,726.96 = 194,673.89 : x
  2. Step 2: Convert to fraction form
    347,656.97/479,726.96 = 194,673.89/x
  3. Step 3: Cross multiply
    347,656.97x = 479,726.96 × 194,673.89
  4. Step 4: Simplify right side
    347,656.97x = 93,390,310,069.07
  5. Step 5: Solve for x
    x = 93,390,310,069.07/347,656.97
  6. Step 6: Final answer
    x = 268,627.76

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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.