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Finding the Fourth Proportional to 355,084.71, 532,629.09 and 118,426.70

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Solution

The fourth proportional to 355,084.71, 532,629.09 and 118,426.70 is: 177,640.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,084.71 : 532,629.09 = 118,426.70 : x
  2. Step 2: Convert to fraction form
    355,084.71/532,629.09 = 118,426.70/x
  3. Step 3: Cross multiply
    355,084.71x = 532,629.09 × 118,426.70
  4. Step 4: Simplify right side
    355,084.71x = 63,077,504,860.57
  5. Step 5: Solve for x
    x = 63,077,504,860.57/355,084.71
  6. Step 6: Final answer
    x = 177,640.73

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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.