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Finding the Fourth Proportional to 64,924.86, 89,539.84 and 45,770.84

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Solution

The fourth proportional to 64,924.86, 89,539.84 and 45,770.84 is: 63,123.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,924.86 : 89,539.84 = 45,770.84 : x
  2. Step 2: Convert to fraction form
    64,924.86/89,539.84 = 45,770.84/x
  3. Step 3: Cross multiply
    64,924.86x = 89,539.84 × 45,770.84
  4. Step 4: Simplify right side
    64,924.86x = 4,098,313,690.27
  5. Step 5: Solve for x
    x = 4,098,313,690.27/64,924.86
  6. Step 6: Final answer
    x = 63,123.95

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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.