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Finding the Fourth Proportional to 118,732.84, 178,186.38 and 95,638.12

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Solution

The fourth proportional to 118,732.84, 178,186.38 and 95,638.12 is: 143,527.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,732.84 : 178,186.38 = 95,638.12 : x
  2. Step 2: Convert to fraction form
    118,732.84/178,186.38 = 95,638.12/x
  3. Step 3: Cross multiply
    118,732.84x = 178,186.38 × 95,638.12
  4. Step 4: Simplify right side
    118,732.84x = 17,041,410,392.81
  5. Step 5: Solve for x
    x = 17,041,410,392.81/118,732.84
  6. Step 6: Final answer
    x = 143,527.35

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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.