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Finding the Fourth Proportional to 78,584.72, 108,448.68 and 44,595.44

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Solution

The fourth proportional to 78,584.72, 108,448.68 and 44,595.44 is: 61,542.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,584.72 : 108,448.68 = 44,595.44 : x
  2. Step 2: Convert to fraction form
    78,584.72/108,448.68 = 44,595.44/x
  3. Step 3: Cross multiply
    78,584.72x = 108,448.68 × 44,595.44
  4. Step 4: Simplify right side
    78,584.72x = 4,836,316,602.02
  5. Step 5: Solve for x
    x = 4,836,316,602.02/78,584.72
  6. Step 6: Final answer
    x = 61,542.71

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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.