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Finding the Fourth Proportional to 178,090.76, 267,266.82 and 143,448.68

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Solution

The fourth proportional to 178,090.76, 267,266.82 and 143,448.68 is: 215,278.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,090.76 : 267,266.82 = 143,448.68 : x
  2. Step 2: Convert to fraction form
    178,090.76/267,266.82 = 143,448.68/x
  3. Step 3: Cross multiply
    178,090.76x = 267,266.82 × 143,448.68
  4. Step 4: Simplify right side
    178,090.76x = 38,339,072,536.80
  5. Step 5: Solve for x
    x = 38,339,072,536.80/178,090.76
  6. Step 6: Final answer
    x = 215,278.28

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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.