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Finding the Fourth Proportional to 178,412.42, 267,726.67 and 71,820.07

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Solution

The fourth proportional to 178,412.42, 267,726.67 and 71,820.07 is: 107,773.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,412.42 : 267,726.67 = 71,820.07 : x
  2. Step 2: Convert to fraction form
    178,412.42/267,726.67 = 71,820.07/x
  3. Step 3: Cross multiply
    178,412.42x = 267,726.67 × 71,820.07
  4. Step 4: Simplify right side
    178,412.42x = 19,228,147,331.40
  5. Step 5: Solve for x
    x = 19,228,147,331.40/178,412.42
  6. Step 6: Final answer
    x = 107,773.59

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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.