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Finding the Fourth Proportional to 108,639.78, 162,919.71 and 37,544.46

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Solution

The fourth proportional to 108,639.78, 162,919.71 and 37,544.46 is: 56,302.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,639.78 : 162,919.71 = 37,544.46 : x
  2. Step 2: Convert to fraction form
    108,639.78/162,919.71 = 37,544.46/x
  3. Step 3: Cross multiply
    108,639.78x = 162,919.71 × 37,544.46
  4. Step 4: Simplify right side
    108,639.78x = 6,116,732,535.31
  5. Step 5: Solve for x
    x = 6,116,732,535.31/108,639.78
  6. Step 6: Final answer
    x = 56,302.88

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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.