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Finding the Fourth Proportional to 537,787.63, 806,732.20 and 158,709.79

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Solution

The fourth proportional to 537,787.63, 806,732.20 and 158,709.79 is: 238,079.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,787.63 : 806,732.20 = 158,709.79 : x
  2. Step 2: Convert to fraction form
    537,787.63/806,732.20 = 158,709.79/x
  3. Step 3: Cross multiply
    537,787.63x = 806,732.20 × 158,709.79
  4. Step 4: Simplify right side
    537,787.63x = 128,036,294,014.58
  5. Step 5: Solve for x
    x = 128,036,294,014.58/537,787.63
  6. Step 6: Final answer
    x = 238,079.66

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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.