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Finding the Fourth Proportional to 200,516.48, 276,712.81 and 109,871.71

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Solution

The fourth proportional to 200,516.48, 276,712.81 and 109,871.71 is: 151,622.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,516.48 : 276,712.81 = 109,871.71 : x
  2. Step 2: Convert to fraction form
    200,516.48/276,712.81 = 109,871.71/x
  3. Step 3: Cross multiply
    200,516.48x = 276,712.81 × 109,871.71
  4. Step 4: Simplify right side
    200,516.48x = 30,402,908,647.14
  5. Step 5: Solve for x
    x = 30,402,908,647.14/200,516.48
  6. Step 6: Final answer
    x = 151,622.99

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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.