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Finding the Fourth Proportional to 78,798.88, 108,739.96 and 44,811.06

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Solution

The fourth proportional to 78,798.88, 108,739.96 and 44,811.06 is: 61,837.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,798.88 : 108,739.96 = 44,811.06 : x
  2. Step 2: Convert to fraction form
    78,798.88/108,739.96 = 44,811.06/x
  3. Step 3: Cross multiply
    78,798.88x = 108,739.96 × 44,811.06
  4. Step 4: Simplify right side
    78,798.88x = 4,872,752,871.96
  5. Step 5: Solve for x
    x = 4,872,752,871.96/78,798.88
  6. Step 6: Final answer
    x = 61,837.84

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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.