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Finding the Fourth Proportional to 128,244.71, 192,367.07 and 34,750.46

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Solution

The fourth proportional to 128,244.71, 192,367.07 and 34,750.46 is: 52,125.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,244.71 : 192,367.07 = 34,750.46 : x
  2. Step 2: Convert to fraction form
    128,244.71/192,367.07 = 34,750.46/x
  3. Step 3: Cross multiply
    128,244.71x = 192,367.07 × 34,750.46
  4. Step 4: Simplify right side
    128,244.71x = 6,684,843,035.76
  5. Step 5: Solve for x
    x = 6,684,843,035.76/128,244.71
  6. Step 6: Final answer
    x = 52,125.68

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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.