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Finding the Fourth Proportional to 177,426.80, 266,140.20 and 114,441.20

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Solution

The fourth proportional to 177,426.80, 266,140.20 and 114,441.20 is: 171,661.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,426.80 : 266,140.20 = 114,441.20 : x
  2. Step 2: Convert to fraction form
    177,426.80/266,140.20 = 114,441.20/x
  3. Step 3: Cross multiply
    177,426.80x = 266,140.20 × 114,441.20
  4. Step 4: Simplify right side
    177,426.80x = 30,457,403,856.24
  5. Step 5: Solve for x
    x = 30,457,403,856.24/177,426.80
  6. Step 6: Final answer
    x = 171,661.80

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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.