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Finding the Fourth Proportional to 177,998.40, 266,673.60 and 140,803.20

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Solution

The fourth proportional to 177,998.40, 266,673.60 and 140,803.20 is: 210,948.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,998.40 : 266,673.60 = 140,803.20 : x
  2. Step 2: Convert to fraction form
    177,998.40/266,673.60 = 140,803.20/x
  3. Step 3: Cross multiply
    177,998.40x = 266,673.60 × 140,803.20
  4. Step 4: Simplify right side
    177,998.40x = 37,548,496,235.52
  5. Step 5: Solve for x
    x = 37,548,496,235.52/177,998.40
  6. Step 6: Final answer
    x = 210,948.50

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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.