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Finding the Fourth Proportional to 110,981.74, 166,516.35 and 48,608.50

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Solution

The fourth proportional to 110,981.74, 166,516.35 and 48,608.50 is: 72,931.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,981.74 : 166,516.35 = 48,608.50 : x
  2. Step 2: Convert to fraction form
    110,981.74/166,516.35 = 48,608.50/x
  3. Step 3: Cross multiply
    110,981.74x = 166,516.35 × 48,608.50
  4. Step 4: Simplify right side
    110,981.74x = 8,094,109,998.98
  5. Step 5: Solve for x
    x = 8,094,109,998.98/110,981.74
  6. Step 6: Final answer
    x = 72,931.91

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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.