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Finding the Fourth Proportional to 178,017.80, 266,961.90 and 89,241.80

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Solution

The fourth proportional to 178,017.80, 266,961.90 and 89,241.80 is: 133,830.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,017.80 : 266,961.90 = 89,241.80 : x
  2. Step 2: Convert to fraction form
    178,017.80/266,961.90 = 89,241.80/x
  3. Step 3: Cross multiply
    178,017.80x = 266,961.90 × 89,241.80
  4. Step 4: Simplify right side
    178,017.80x = 23,824,160,487.42
  5. Step 5: Solve for x
    x = 23,824,160,487.42/178,017.80
  6. Step 6: Final answer
    x = 133,830.22

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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.