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Finding the Fourth Proportional to 109,388.40, 164,082.60 and 109,388.40

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Solution

The fourth proportional to 109,388.40, 164,082.60 and 109,388.40 is: 164,082.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,388.40 : 164,082.60 = 109,388.40 : x
  2. Step 2: Convert to fraction form
    109,388.40/164,082.60 = 109,388.40/x
  3. Step 3: Cross multiply
    109,388.40x = 164,082.60 × 109,388.40
  4. Step 4: Simplify right side
    109,388.40x = 17,948,733,081.84
  5. Step 5: Solve for x
    x = 17,948,733,081.84/109,388.40
  6. Step 6: Final answer
    x = 164,082.60

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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.