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Finding the Fourth Proportional to 119,103.81, 178,725.78 and 44,276.55

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Solution

The fourth proportional to 119,103.81, 178,725.78 and 44,276.55 is: 66,440.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,103.81 : 178,725.78 = 44,276.55 : x
  2. Step 2: Convert to fraction form
    119,103.81/178,725.78 = 44,276.55/x
  3. Step 3: Cross multiply
    119,103.81x = 178,725.78 × 44,276.55
  4. Step 4: Simplify right side
    119,103.81x = 7,913,360,934.46
  5. Step 5: Solve for x
    x = 7,913,360,934.46/119,103.81
  6. Step 6: Final answer
    x = 66,440.87

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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.