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Finding the Fourth Proportional to 200,520.78, 276,715.02 and 118,903.94

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Solution

The fourth proportional to 200,520.78, 276,715.02 and 118,903.94 is: 164,085.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,520.78 : 276,715.02 = 118,903.94 : x
  2. Step 2: Convert to fraction form
    200,520.78/276,715.02 = 118,903.94/x
  3. Step 3: Cross multiply
    200,520.78x = 276,715.02 × 118,903.94
  4. Step 4: Simplify right side
    200,520.78x = 32,902,506,135.18
  5. Step 5: Solve for x
    x = 32,902,506,135.18/200,520.78
  6. Step 6: Final answer
    x = 164,085.27

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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.