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Finding the Fourth Proportional to 492,837.96, 739,348.18 and 155,963.40

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Solution

The fourth proportional to 492,837.96, 739,348.18 and 155,963.40 is: 233,973.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,837.96 : 739,348.18 = 155,963.40 : x
  2. Step 2: Convert to fraction form
    492,837.96/739,348.18 = 155,963.40/x
  3. Step 3: Cross multiply
    492,837.96x = 739,348.18 × 155,963.40
  4. Step 4: Simplify right side
    492,837.96x = 115,311,255,936.61
  5. Step 5: Solve for x
    x = 115,311,255,936.61/492,837.96
  6. Step 6: Final answer
    x = 233,973.97

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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.