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Finding the Fourth Proportional to 261,179.94, 391,758.92 and 83,683.02

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Solution

The fourth proportional to 261,179.94, 391,758.92 and 83,683.02 is: 125,521.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,179.94 : 391,758.92 = 83,683.02 : x
  2. Step 2: Convert to fraction form
    261,179.94/391,758.92 = 83,683.02/x
  3. Step 3: Cross multiply
    261,179.94x = 391,758.92 × 83,683.02
  4. Step 4: Simplify right side
    261,179.94x = 32,783,569,537.54
  5. Step 5: Solve for x
    x = 32,783,569,537.54/261,179.94
  6. Step 6: Final answer
    x = 125,521.01

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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.