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Finding the Fourth Proportional to 200,049.40, 276,102.12 and 115,215.58

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Solution

The fourth proportional to 200,049.40, 276,102.12 and 115,215.58 is: 159,017.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,049.40 : 276,102.12 = 115,215.58 : x
  2. Step 2: Convert to fraction form
    200,049.40/276,102.12 = 115,215.58/x
  3. Step 3: Cross multiply
    200,049.40x = 276,102.12 × 115,215.58
  4. Step 4: Simplify right side
    200,049.40x = 31,811,265,895.03
  5. Step 5: Solve for x
    x = 31,811,265,895.03/200,049.40
  6. Step 6: Final answer
    x = 159,017.05

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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.