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Finding the Fourth Proportional to 243,172.37, 335,583.18 and 134,276.42

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Solution

The fourth proportional to 243,172.37, 335,583.18 and 134,276.42 is: 185,304.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,172.37 : 335,583.18 = 134,276.42 : x
  2. Step 2: Convert to fraction form
    243,172.37/335,583.18 = 134,276.42/x
  3. Step 3: Cross multiply
    243,172.37x = 335,583.18 × 134,276.42
  4. Step 4: Simplify right side
    243,172.37x = 45,060,908,022.62
  5. Step 5: Solve for x
    x = 45,060,908,022.62/243,172.37
  6. Step 6: Final answer
    x = 185,304.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.