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Finding the Fourth Proportional to 454,489.85, 681,733.67 and 134,666.62

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Solution

The fourth proportional to 454,489.85, 681,733.67 and 134,666.62 is: 201,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,489.85 : 681,733.67 = 134,666.62 : x
  2. Step 2: Convert to fraction form
    454,489.85/681,733.67 = 134,666.62/x
  3. Step 3: Cross multiply
    454,489.85x = 681,733.67 × 134,666.62
  4. Step 4: Simplify right side
    454,489.85x = 91,806,766,701.43
  5. Step 5: Solve for x
    x = 91,806,766,701.43/454,489.85
  6. Step 6: Final answer
    x = 201,999.60

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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.