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Finding the Fourth Proportional to 347,572.59, 479,636.88 and 194,596.47

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Solution

The fourth proportional to 347,572.59, 479,636.88 and 194,596.47 is: 268,535.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,572.59 : 479,636.88 = 194,596.47 : x
  2. Step 2: Convert to fraction form
    347,572.59/479,636.88 = 194,596.47/x
  3. Step 3: Cross multiply
    347,572.59x = 479,636.88 × 194,596.47
  4. Step 4: Simplify right side
    347,572.59x = 93,335,641,818.12
  5. Step 5: Solve for x
    x = 93,335,641,818.12/347,572.59
  6. Step 6: Final answer
    x = 268,535.68

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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.