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Finding the Fourth Proportional to 267,492.21, 401,290.77 and 99,013.96

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Solution

The fourth proportional to 267,492.21, 401,290.77 and 99,013.96 is: 148,540.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,492.21 : 401,290.77 = 99,013.96 : x
  2. Step 2: Convert to fraction form
    267,492.21/401,290.77 = 99,013.96/x
  3. Step 3: Cross multiply
    267,492.21x = 401,290.77 × 99,013.96
  4. Step 4: Simplify right side
    267,492.21x = 39,733,388,565.11
  5. Step 5: Solve for x
    x = 39,733,388,565.11/267,492.21
  6. Step 6: Final answer
    x = 148,540.36

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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.