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Finding the Fourth Proportional to 78,055.36, 107,718.08 and 44,057.36

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Solution

The fourth proportional to 78,055.36, 107,718.08 and 44,057.36 is: 60,800.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,055.36 : 107,718.08 = 44,057.36 : x
  2. Step 2: Convert to fraction form
    78,055.36/107,718.08 = 44,057.36/x
  3. Step 3: Cross multiply
    78,055.36x = 107,718.08 × 44,057.36
  4. Step 4: Simplify right side
    78,055.36x = 4,745,774,229.07
  5. Step 5: Solve for x
    x = 4,745,774,229.07/78,055.36
  6. Step 6: Final answer
    x = 60,800.11

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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.