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Finding the Fourth Proportional to 78,709.73, 108,623.27 and 44,265.30

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Solution

The fourth proportional to 78,709.73, 108,623.27 and 44,265.30 is: 61,088.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,709.73 : 108,623.27 = 44,265.30 : x
  2. Step 2: Convert to fraction form
    78,709.73/108,623.27 = 44,265.30/x
  3. Step 3: Cross multiply
    78,709.73x = 108,623.27 × 44,265.30
  4. Step 4: Simplify right side
    78,709.73x = 4,808,241,633.53
  5. Step 5: Solve for x
    x = 4,808,241,633.53/78,709.73
  6. Step 6: Final answer
    x = 61,088.28

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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.