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Finding the Fourth Proportional to 90,594.88, 125,028.96 and 52,881.28

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Solution

The fourth proportional to 90,594.88, 125,028.96 and 52,881.28 is: 72,980.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,594.88 : 125,028.96 = 52,881.28 : x
  2. Step 2: Convert to fraction form
    90,594.88/125,028.96 = 52,881.28/x
  3. Step 3: Cross multiply
    90,594.88x = 125,028.96 × 52,881.28
  4. Step 4: Simplify right side
    90,594.88x = 6,611,691,441.87
  5. Step 5: Solve for x
    x = 6,611,691,441.87/90,594.88
  6. Step 6: Final answer
    x = 72,980.85

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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.