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Finding the Fourth Proportional to 89,522.56, 134,264.64 and 36,918.40

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Solution

The fourth proportional to 89,522.56, 134,264.64 and 36,918.40 is: 55,369.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,522.56 : 134,264.64 = 36,918.40 : x
  2. Step 2: Convert to fraction form
    89,522.56/134,264.64 = 36,918.40/x
  3. Step 3: Cross multiply
    89,522.56x = 134,264.64 × 36,918.40
  4. Step 4: Simplify right side
    89,522.56x = 4,956,835,685.38
  5. Step 5: Solve for x
    x = 4,956,835,685.38/89,522.56
  6. Step 6: Final answer
    x = 55,369.68

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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.