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Finding the Fourth Proportional to 495,706.70, 743,560.47 and 135,881.47

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Solution

The fourth proportional to 495,706.70, 743,560.47 and 135,881.47 is: 203,822.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,706.70 : 743,560.47 = 135,881.47 : x
  2. Step 2: Convert to fraction form
    495,706.70/743,560.47 = 135,881.47/x
  3. Step 3: Cross multiply
    495,706.70x = 743,560.47 × 135,881.47
  4. Step 4: Simplify right side
    495,706.70x = 101,036,086,635.50
  5. Step 5: Solve for x
    x = 101,036,086,635.50/495,706.70
  6. Step 6: Final answer
    x = 203,822.31

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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.