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Finding the Fourth Proportional to 200,091.70, 276,150.36 and 115,225.30

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Solution

The fourth proportional to 200,091.70, 276,150.36 and 115,225.30 is: 159,024.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,091.70 : 276,150.36 = 115,225.30 : x
  2. Step 2: Convert to fraction form
    200,091.70/276,150.36 = 115,225.30/x
  3. Step 3: Cross multiply
    200,091.70x = 276,150.36 × 115,225.30
  4. Step 4: Simplify right side
    200,091.70x = 31,819,508,076.11
  5. Step 5: Solve for x
    x = 31,819,508,076.11/200,091.70
  6. Step 6: Final answer
    x = 159,024.63

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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.