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Finding the Fourth Proportional to 117,683.61, 176,469.94 and 42,750.91

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Solution

The fourth proportional to 117,683.61, 176,469.94 and 42,750.91 is: 64,106.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,683.61 : 176,469.94 = 42,750.91 : x
  2. Step 2: Convert to fraction form
    117,683.61/176,469.94 = 42,750.91/x
  3. Step 3: Cross multiply
    117,683.61x = 176,469.94 × 42,750.91
  4. Step 4: Simplify right side
    117,683.61x = 7,544,250,522.65
  5. Step 5: Solve for x
    x = 7,544,250,522.65/117,683.61
  6. Step 6: Final answer
    x = 64,106.21

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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.