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Finding the Fourth Proportional to 178,014.80, 266,957.40 and 89,238.80

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Solution

The fourth proportional to 178,014.80, 266,957.40 and 89,238.80 is: 133,825.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,014.80 : 266,957.40 = 89,238.80 : x
  2. Step 2: Convert to fraction form
    178,014.80/266,957.40 = 89,238.80/x
  3. Step 3: Cross multiply
    178,014.80x = 266,957.40 × 89,238.80
  4. Step 4: Simplify right side
    178,014.80x = 23,822,958,027.12
  5. Step 5: Solve for x
    x = 23,822,958,027.12/178,014.80
  6. Step 6: Final answer
    x = 133,825.72

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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.