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Finding the Fourth Proportional to 342,885.50, 473,186.88 and 197,688.41

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Solution

The fourth proportional to 342,885.50, 473,186.88 and 197,688.41 is: 272,812.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,885.50 : 473,186.88 = 197,688.41 : x
  2. Step 2: Convert to fraction form
    342,885.50/473,186.88 = 197,688.41/x
  3. Step 3: Cross multiply
    342,885.50x = 473,186.88 × 197,688.41
  4. Step 4: Simplify right side
    342,885.50x = 93,543,560,951.62
  5. Step 5: Solve for x
    x = 93,543,560,951.62/342,885.50
  6. Step 6: Final answer
    x = 272,812.82

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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.