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Finding the Fourth Proportional to 347,625.41, 479,749.28 and 194,655.69

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Solution

The fourth proportional to 347,625.41, 479,749.28 and 194,655.69 is: 268,639.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,625.41 : 479,749.28 = 194,655.69 : x
  2. Step 2: Convert to fraction form
    347,625.41/479,749.28 = 194,655.69/x
  3. Step 3: Cross multiply
    347,625.41x = 479,749.28 × 194,655.69
  4. Step 4: Simplify right side
    347,625.41x = 93,385,926,152.12
  5. Step 5: Solve for x
    x = 93,385,926,152.12/347,625.41
  6. Step 6: Final answer
    x = 268,639.53

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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.