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Finding the Fourth Proportional to 134,706.76, 185,818.18 and 84,318.28

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Solution

The fourth proportional to 134,706.76, 185,818.18 and 84,318.28 is: 116,310.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,706.76 : 185,818.18 = 84,318.28 : x
  2. Step 2: Convert to fraction form
    134,706.76/185,818.18 = 84,318.28/x
  3. Step 3: Cross multiply
    134,706.76x = 185,818.18 × 84,318.28
  4. Step 4: Simplify right side
    134,706.76x = 15,667,869,330.33
  5. Step 5: Solve for x
    x = 15,667,869,330.33/134,706.76
  6. Step 6: Final answer
    x = 116,310.94

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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.