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Finding the Fourth Proportional to 359,099.83, 495,561.21 and 197,960.64

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Solution

The fourth proportional to 359,099.83, 495,561.21 and 197,960.64 is: 273,187.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,099.83 : 495,561.21 = 197,960.64 : x
  2. Step 2: Convert to fraction form
    359,099.83/495,561.21 = 197,960.64/x
  3. Step 3: Cross multiply
    359,099.83x = 495,561.21 × 197,960.64
  4. Step 4: Simplify right side
    359,099.83x = 98,101,614,290.77
  5. Step 5: Solve for x
    x = 98,101,614,290.77/359,099.83
  6. Step 6: Final answer
    x = 273,187.58

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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.