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Finding the Fourth Proportional to 359,346.21, 495,900.12 and 198,205.62

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Solution

The fourth proportional to 359,346.21, 495,900.12 and 198,205.62 is: 273,525.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,346.21 : 495,900.12 = 198,205.62 : x
  2. Step 2: Convert to fraction form
    359,346.21/495,900.12 = 198,205.62/x
  3. Step 3: Cross multiply
    359,346.21x = 495,900.12 × 198,205.62
  4. Step 4: Simplify right side
    359,346.21x = 98,290,190,742.67
  5. Step 5: Solve for x
    x = 98,290,190,742.67/359,346.21
  6. Step 6: Final answer
    x = 273,525.05

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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.