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Finding the Fourth Proportional to 200,176.95, 276,241.79 and 109,531.95

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Solution

The fourth proportional to 200,176.95, 276,241.79 and 109,531.95 is: 151,152.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,176.95 : 276,241.79 = 109,531.95 : x
  2. Step 2: Convert to fraction form
    200,176.95/276,241.79 = 109,531.95/x
  3. Step 3: Cross multiply
    200,176.95x = 276,241.79 × 109,531.95
  4. Step 4: Simplify right side
    200,176.95x = 30,257,301,168.11
  5. Step 5: Solve for x
    x = 30,257,301,168.11/200,176.95
  6. Step 6: Final answer
    x = 151,152.78

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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.