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Finding the Fourth Proportional to 132,035.70, 198,111.87 and 53,303.70

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Solution

The fourth proportional to 132,035.70, 198,111.87 and 53,303.70 is: 79,979.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,035.70 : 198,111.87 = 53,303.70 : x
  2. Step 2: Convert to fraction form
    132,035.70/198,111.87 = 53,303.70/x
  3. Step 3: Cross multiply
    132,035.70x = 198,111.87 × 53,303.70
  4. Step 4: Simplify right side
    132,035.70x = 10,560,095,684.92
  5. Step 5: Solve for x
    x = 10,560,095,684.92/132,035.70
  6. Step 6: Final answer
    x = 79,979.09

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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.