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Finding the Fourth Proportional to 267,305.40, 401,066.10 and 117,574.20

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Solution

The fourth proportional to 267,305.40, 401,066.10 and 117,574.20 is: 176,408.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,305.40 : 401,066.10 = 117,574.20 : x
  2. Step 2: Convert to fraction form
    267,305.40/401,066.10 = 117,574.20/x
  3. Step 3: Cross multiply
    267,305.40x = 401,066.10 × 117,574.20
  4. Step 4: Simplify right side
    267,305.40x = 47,155,025,854.62
  5. Step 5: Solve for x
    x = 47,155,025,854.62/267,305.40
  6. Step 6: Final answer
    x = 176,408.80

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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.