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Finding the Fourth Proportional to 359,803.85, 496,525.95 and 198,660.06

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Solution

The fourth proportional to 359,803.85, 496,525.95 and 198,660.06 is: 274,149.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,803.85 : 496,525.95 = 198,660.06 : x
  2. Step 2: Convert to fraction form
    359,803.85/496,525.95 = 198,660.06/x
  3. Step 3: Cross multiply
    359,803.85x = 496,525.95 × 198,660.06
  4. Step 4: Simplify right side
    359,803.85x = 98,639,875,018.56
  5. Step 5: Solve for x
    x = 98,639,875,018.56/359,803.85
  6. Step 6: Final answer
    x = 274,149.03

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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.