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Finding the Fourth Proportional to 77,926.60, 107,539.86 and 44,391.88

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Solution

The fourth proportional to 77,926.60, 107,539.86 and 44,391.88 is: 61,261.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,926.60 : 107,539.86 = 44,391.88 : x
  2. Step 2: Convert to fraction form
    77,926.60/107,539.86 = 44,391.88/x
  3. Step 3: Cross multiply
    77,926.60x = 107,539.86 × 44,391.88
  4. Step 4: Simplify right side
    77,926.60x = 4,773,896,560.34
  5. Step 5: Solve for x
    x = 4,773,896,560.34/77,926.60
  6. Step 6: Final answer
    x = 61,261.45

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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.