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Finding the Fourth Proportional to 177,363.20, 266,131.20 and 135,228.80

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Solution

The fourth proportional to 177,363.20, 266,131.20 and 135,228.80 is: 202,909.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,363.20 : 266,131.20 = 135,228.80 : x
  2. Step 2: Convert to fraction form
    177,363.20/266,131.20 = 135,228.80/x
  3. Step 3: Cross multiply
    177,363.20x = 266,131.20 × 135,228.80
  4. Step 4: Simplify right side
    177,363.20x = 35,988,602,818.56
  5. Step 5: Solve for x
    x = 35,988,602,818.56/177,363.20
  6. Step 6: Final answer
    x = 202,909.07

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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.