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Finding the Fourth Proportional to 72,624.60, 100,263.96 and 47,517.84

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Solution

The fourth proportional to 72,624.60, 100,263.96 and 47,517.84 is: 65,602.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,624.60 : 100,263.96 = 47,517.84 : x
  2. Step 2: Convert to fraction form
    72,624.60/100,263.96 = 47,517.84/x
  3. Step 3: Cross multiply
    72,624.60x = 100,263.96 × 47,517.84
  4. Step 4: Simplify right side
    72,624.60x = 4,764,326,809.05
  5. Step 5: Solve for x
    x = 4,764,326,809.05/72,624.60
  6. Step 6: Final answer
    x = 65,602.11

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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.