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Finding the Fourth Proportional to 202,620.90, 303,931.50 and 52,861.02

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Solution

The fourth proportional to 202,620.90, 303,931.50 and 52,861.02 is: 79,291.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,620.90 : 303,931.50 = 52,861.02 : x
  2. Step 2: Convert to fraction form
    202,620.90/303,931.50 = 52,861.02/x
  3. Step 3: Cross multiply
    202,620.90x = 303,931.50 × 52,861.02
  4. Step 4: Simplify right side
    202,620.90x = 16,066,129,100.13
  5. Step 5: Solve for x
    x = 16,066,129,100.13/202,620.90
  6. Step 6: Final answer
    x = 79,291.57

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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.