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Finding the Fourth Proportional to 273,885.20, 410,827.80 and 155,787.20

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Solution

The fourth proportional to 273,885.20, 410,827.80 and 155,787.20 is: 233,680.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,885.20 : 410,827.80 = 155,787.20 : x
  2. Step 2: Convert to fraction form
    273,885.20/410,827.80 = 155,787.20/x
  3. Step 3: Cross multiply
    273,885.20x = 410,827.80 × 155,787.20
  4. Step 4: Simplify right side
    273,885.20x = 64,001,712,644.16
  5. Step 5: Solve for x
    x = 64,001,712,644.16/273,885.20
  6. Step 6: Final answer
    x = 233,680.80

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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.