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Finding the Fourth Proportional to 100,811.79, 151,250.49 and 48,225.38

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Solution

The fourth proportional to 100,811.79, 151,250.49 and 48,225.38 is: 72,353.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,811.79 : 151,250.49 = 48,225.38 : x
  2. Step 2: Convert to fraction form
    100,811.79/151,250.49 = 48,225.38/x
  3. Step 3: Cross multiply
    100,811.79x = 151,250.49 × 48,225.38
  4. Step 4: Simplify right side
    100,811.79x = 7,294,111,599.18
  5. Step 5: Solve for x
    x = 7,294,111,599.18/100,811.79
  6. Step 6: Final answer
    x = 72,353.76

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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.