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Finding the Fourth Proportional to 90,602.93, 135,905.81 and 27,423.74

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Solution

The fourth proportional to 90,602.93, 135,905.81 and 27,423.74 is: 41,136.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,602.93 : 135,905.81 = 27,423.74 : x
  2. Step 2: Convert to fraction form
    90,602.93/135,905.81 = 27,423.74/x
  3. Step 3: Cross multiply
    90,602.93x = 135,905.81 × 27,423.74
  4. Step 4: Simplify right side
    90,602.93x = 3,727,045,597.93
  5. Step 5: Solve for x
    x = 3,727,045,597.93/90,602.93
  6. Step 6: Final answer
    x = 41,136.04

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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.