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Finding the Fourth Proportional to 91,740.63, 137,624.63 and 32,571.35

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Solution

The fourth proportional to 91,740.63, 137,624.63 and 32,571.35 is: 48,861.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,740.63 : 137,624.63 = 32,571.35 : x
  2. Step 2: Convert to fraction form
    91,740.63/137,624.63 = 32,571.35/x
  3. Step 3: Cross multiply
    91,740.63x = 137,624.63 × 32,571.35
  4. Step 4: Simplify right side
    91,740.63x = 4,482,619,141.37
  5. Step 5: Solve for x
    x = 4,482,619,141.37/91,740.63
  6. Step 6: Final answer
    x = 48,861.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.