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Finding the Fourth Proportional to 178,057.80, 266,957.10 and 72,822.60

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Solution

The fourth proportional to 178,057.80, 266,957.10 and 72,822.60 is: 109,180.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,057.80 : 266,957.10 = 72,822.60 : x
  2. Step 2: Convert to fraction form
    178,057.80/266,957.10 = 72,822.60/x
  3. Step 3: Cross multiply
    178,057.80x = 266,957.10 × 72,822.60
  4. Step 4: Simplify right side
    178,057.80x = 19,440,510,110.46
  5. Step 5: Solve for x
    x = 19,440,510,110.46/178,057.80
  6. Step 6: Final answer
    x = 109,180.90

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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.