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Finding the Fourth Proportional to 76,592.88, 105,692.76 and 43,063.92

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Solution

The fourth proportional to 76,592.88, 105,692.76 and 43,063.92 is: 59,425.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,592.88 : 105,692.76 = 43,063.92 : x
  2. Step 2: Convert to fraction form
    76,592.88/105,692.76 = 43,063.92/x
  3. Step 3: Cross multiply
    76,592.88x = 105,692.76 × 43,063.92
  4. Step 4: Simplify right side
    76,592.88x = 4,551,544,561.22
  5. Step 5: Solve for x
    x = 4,551,544,561.22/76,592.88
  6. Step 6: Final answer
    x = 59,425.17

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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.