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Finding the Fourth Proportional to 111,244.68, 166,888.80 and 48,915

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Solution

The fourth proportional to 111,244.68, 166,888.80 and 48,915 is: 73,382.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,244.68 : 166,888.80 = 48,915 : x
  2. Step 2: Convert to fraction form
    111,244.68/166,888.80 = 48,915/x
  3. Step 3: Cross multiply
    111,244.68x = 166,888.80 × 48,915
  4. Step 4: Simplify right side
    111,244.68x = 8,163,365,652.00
  5. Step 5: Solve for x
    x = 8,163,365,652.00/111,244.68
  6. Step 6: Final answer
    x = 73,382.08

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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.