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Finding the Fourth Proportional to 118,689.66, 178,034.01 and 48,568.94

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Solution

The fourth proportional to 118,689.66, 178,034.01 and 48,568.94 is: 72,853.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,689.66 : 178,034.01 = 48,568.94 : x
  2. Step 2: Convert to fraction form
    118,689.66/178,034.01 = 48,568.94/x
  3. Step 3: Cross multiply
    118,689.66x = 178,034.01 × 48,568.94
  4. Step 4: Simplify right side
    118,689.66x = 8,646,923,149.65
  5. Step 5: Solve for x
    x = 8,646,923,149.65/118,689.66
  6. Step 6: Final answer
    x = 72,853.21

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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.