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Finding the Fourth Proportional to 359,205.21, 495,725.66 and 198,060.03

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Solution

The fourth proportional to 359,205.21, 495,725.66 and 198,060.03 is: 273,335.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,205.21 : 495,725.66 = 198,060.03 : x
  2. Step 2: Convert to fraction form
    359,205.21/495,725.66 = 198,060.03/x
  3. Step 3: Cross multiply
    359,205.21x = 495,725.66 × 198,060.03
  4. Step 4: Simplify right side
    359,205.21x = 98,183,439,091.37
  5. Step 5: Solve for x
    x = 98,183,439,091.37/359,205.21
  6. Step 6: Final answer
    x = 273,335.23

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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.