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Finding the Fourth Proportional to 178,347.21, 267,518.10 and 43,412.28

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Solution

The fourth proportional to 178,347.21, 267,518.10 and 43,412.28 is: 65,117.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,347.21 : 267,518.10 = 43,412.28 : x
  2. Step 2: Convert to fraction form
    178,347.21/267,518.10 = 43,412.28/x
  3. Step 3: Cross multiply
    178,347.21x = 267,518.10 × 43,412.28
  4. Step 4: Simplify right side
    178,347.21x = 11,613,570,662.27
  5. Step 5: Solve for x
    x = 11,613,570,662.27/178,347.21
  6. Step 6: Final answer
    x = 65,117.76

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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.