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Finding the Fourth Proportional to 178,205.80, 266,936.10 and 83,516.80

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Solution

The fourth proportional to 178,205.80, 266,936.10 and 83,516.80 is: 125,100.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,205.80 : 266,936.10 = 83,516.80 : x
  2. Step 2: Convert to fraction form
    178,205.80/266,936.10 = 83,516.80/x
  3. Step 3: Cross multiply
    178,205.80x = 266,936.10 × 83,516.80
  4. Step 4: Simplify right side
    178,205.80x = 22,293,648,876.48
  5. Step 5: Solve for x
    x = 22,293,648,876.48/178,205.80
  6. Step 6: Final answer
    x = 125,100.58

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1.5x scale

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.