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Finding the Fourth Proportional to 200,038.56, 276,082.20 and 115,154.88

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Solution

The fourth proportional to 200,038.56, 276,082.20 and 115,154.88 is: 158,930.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,038.56 : 276,082.20 = 115,154.88 : x
  2. Step 2: Convert to fraction form
    200,038.56/276,082.20 = 115,154.88/x
  3. Step 3: Cross multiply
    200,038.56x = 276,082.20 × 115,154.88
  4. Step 4: Simplify right side
    200,038.56x = 31,792,212,611.14
  5. Step 5: Solve for x
    x = 31,792,212,611.14/200,038.56
  6. Step 6: Final answer
    x = 158,930.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.