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Finding the Fourth Proportional to 77,776.56, 107,331.48 and 44,242.56

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Solution

The fourth proportional to 77,776.56, 107,331.48 and 44,242.56 is: 61,054.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,776.56 : 107,331.48 = 44,242.56 : x
  2. Step 2: Convert to fraction form
    77,776.56/107,331.48 = 44,242.56/x
  3. Step 3: Cross multiply
    77,776.56x = 107,331.48 × 44,242.56
  4. Step 4: Simplify right side
    77,776.56x = 4,748,619,443.79
  5. Step 5: Solve for x
    x = 4,748,619,443.79/77,776.56
  6. Step 6: Final answer
    x = 61,054.63

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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.