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Finding the Fourth Proportional to 68,063.90, 102,095.84 and 28,082.30

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Solution

The fourth proportional to 68,063.90, 102,095.84 and 28,082.30 is: 42,123.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,063.90 : 102,095.84 = 28,082.30 : x
  2. Step 2: Convert to fraction form
    68,063.90/102,095.84 = 28,082.30/x
  3. Step 3: Cross multiply
    68,063.90x = 102,095.84 × 28,082.30
  4. Step 4: Simplify right side
    68,063.90x = 2,867,085,567.36
  5. Step 5: Solve for x
    x = 2,867,085,567.36/68,063.90
  6. Step 6: Final answer
    x = 42,123.44

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1.5x scale

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.