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Finding the Fourth Proportional to 253,300.89, 380,082.27 and 111,246

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Solution

The fourth proportional to 253,300.89, 380,082.27 and 111,246 is: 166,926.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,300.89 : 380,082.27 = 111,246 : x
  2. Step 2: Convert to fraction form
    253,300.89/380,082.27 = 111,246/x
  3. Step 3: Cross multiply
    253,300.89x = 380,082.27 × 111,246
  4. Step 4: Simplify right side
    253,300.89x = 42,282,632,208.42
  5. Step 5: Solve for x
    x = 42,282,632,208.42/253,300.89
  6. Step 6: Final answer
    x = 166,926.50

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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.