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Finding the Fourth Proportional to 78,336, 108,110.16 and 44,808.48

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Solution

The fourth proportional to 78,336, 108,110.16 and 44,808.48 is: 61,839.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,336 : 108,110.16 = 44,808.48 : x
  2. Step 2: Convert to fraction form
    78,336/108,110.16 = 44,808.48/x
  3. Step 3: Cross multiply
    78,336x = 108,110.16 × 44,808.48
  4. Step 4: Simplify right side
    78,336x = 4,844,251,942.16
  5. Step 5: Solve for x
    x = 4,844,251,942.16/78,336
  6. Step 6: Final answer
    x = 61,839.41

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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.