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Finding the Fourth Proportional to 78,844.84, 108,785.10 and 44,853.64

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Solution

The fourth proportional to 78,844.84, 108,785.10 and 44,853.64 is: 61,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,844.84 : 108,785.10 = 44,853.64 : x
  2. Step 2: Convert to fraction form
    78,844.84/108,785.10 = 44,853.64/x
  3. Step 3: Cross multiply
    78,844.84x = 108,785.10 × 44,853.64
  4. Step 4: Simplify right side
    78,844.84x = 4,879,407,712.76
  5. Step 5: Solve for x
    x = 4,879,407,712.76/78,844.84
  6. Step 6: Final answer
    x = 61,886.20

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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.