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Finding the Fourth Proportional to 89,813.90, 134,731.59 and 36,494.48

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Solution

The fourth proportional to 89,813.90, 134,731.59 and 36,494.48 is: 54,746.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,813.90 : 134,731.59 = 36,494.48 : x
  2. Step 2: Convert to fraction form
    89,813.90/134,731.59 = 36,494.48/x
  3. Step 3: Cross multiply
    89,813.90x = 134,731.59 × 36,494.48
  4. Step 4: Simplify right side
    89,813.90x = 4,916,959,516.60
  5. Step 5: Solve for x
    x = 4,916,959,516.60/89,813.90
  6. Step 6: Final answer
    x = 54,746.09

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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.