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Finding the Fourth Proportional to 78,496.84, 108,328.49 and 44,969.32

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Solution

The fourth proportional to 78,496.84, 108,328.49 and 44,969.32 is: 62,059.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,496.84 : 108,328.49 = 44,969.32 : x
  2. Step 2: Convert to fraction form
    78,496.84/108,328.49 = 44,969.32/x
  3. Step 3: Cross multiply
    78,496.84x = 108,328.49 × 44,969.32
  4. Step 4: Simplify right side
    78,496.84x = 4,871,458,001.78
  5. Step 5: Solve for x
    x = 4,871,458,001.78/78,496.84
  6. Step 6: Final answer
    x = 62,059.29

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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.