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Finding the Fourth Proportional to 342,868.48, 473,163.50 and 197,671.76

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Solution

The fourth proportional to 342,868.48, 473,163.50 and 197,671.76 is: 272,789.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,868.48 : 473,163.50 = 197,671.76 : x
  2. Step 2: Convert to fraction form
    342,868.48/473,163.50 = 197,671.76/x
  3. Step 3: Cross multiply
    342,868.48x = 473,163.50 × 197,671.76
  4. Step 4: Simplify right side
    342,868.48x = 93,531,061,812.76
  5. Step 5: Solve for x
    x = 93,531,061,812.76/342,868.48
  6. Step 6: Final answer
    x = 272,789.91

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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.