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Finding the Fourth Proportional to 200,516.67, 276,713.07 and 109,871.90

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Solution

The fourth proportional to 200,516.67, 276,713.07 and 109,871.90 is: 151,623.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,516.67 : 276,713.07 = 109,871.90 : x
  2. Step 2: Convert to fraction form
    200,516.67/276,713.07 = 109,871.90/x
  3. Step 3: Cross multiply
    200,516.67x = 276,713.07 × 109,871.90
  4. Step 4: Simplify right side
    200,516.67x = 30,402,989,372.17
  5. Step 5: Solve for x
    x = 30,402,989,372.17/200,516.67
  6. Step 6: Final answer
    x = 151,623.25

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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.