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Finding the Fourth Proportional to 202,279.10, 303,613.05 and 102,551.90

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Solution

The fourth proportional to 202,279.10, 303,613.05 and 102,551.90 is: 153,926.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,279.10 : 303,613.05 = 102,551.90 : x
  2. Step 2: Convert to fraction form
    202,279.10/303,613.05 = 102,551.90/x
  3. Step 3: Cross multiply
    202,279.10x = 303,613.05 × 102,551.90
  4. Step 4: Simplify right side
    202,279.10x = 31,136,095,142.30
  5. Step 5: Solve for x
    x = 31,136,095,142.30/202,279.10
  6. Step 6: Final answer
    x = 153,926.41

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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.