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Finding the Fourth Proportional to 357,098.94, 535,679.87 and 132,461.78

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Solution

The fourth proportional to 357,098.94, 535,679.87 and 132,461.78 is: 198,704.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,098.94 : 535,679.87 = 132,461.78 : x
  2. Step 2: Convert to fraction form
    357,098.94/535,679.87 = 132,461.78/x
  3. Step 3: Cross multiply
    357,098.94x = 535,679.87 × 132,461.78
  4. Step 4: Simplify right side
    357,098.94x = 70,957,105,749.66
  5. Step 5: Solve for x
    x = 70,957,105,749.66/357,098.94
  6. Step 6: Final answer
    x = 198,704.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.