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Finding the Fourth Proportional to 200,156.48, 276,213.48 and 109,511.15

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Solution

The fourth proportional to 200,156.48, 276,213.48 and 109,511.15 is: 151,124.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,156.48 : 276,213.48 = 109,511.15 : x
  2. Step 2: Convert to fraction form
    200,156.48/276,213.48 = 109,511.15/x
  3. Step 3: Cross multiply
    200,156.48x = 276,213.48 × 109,511.15
  4. Step 4: Simplify right side
    200,156.48x = 30,248,454,664.57
  5. Step 5: Solve for x
    x = 30,248,454,664.57/200,156.48
  6. Step 6: Final answer
    x = 151,124.03

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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.