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Finding the Fourth Proportional to 272,813.76, 409,130.88 and 95,280.96

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Solution

The fourth proportional to 272,813.76, 409,130.88 and 95,280.96 is: 142,890.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,813.76 : 409,130.88 = 95,280.96 : x
  2. Step 2: Convert to fraction form
    272,813.76/409,130.88 = 95,280.96/x
  3. Step 3: Cross multiply
    272,813.76x = 409,130.88 × 95,280.96
  4. Step 4: Simplify right side
    272,813.76x = 38,982,383,012.04
  5. Step 5: Solve for x
    x = 38,982,383,012.04/272,813.76
  6. Step 6: Final answer
    x = 142,890.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.