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Finding the Fourth Proportional to 267,567.66, 401,412.90 and 90,069.96

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Solution

The fourth proportional to 267,567.66, 401,412.90 and 90,069.96 is: 135,125.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,567.66 : 401,412.90 = 90,069.96 : x
  2. Step 2: Convert to fraction form
    267,567.66/401,412.90 = 90,069.96/x
  3. Step 3: Cross multiply
    267,567.66x = 401,412.90 × 90,069.96
  4. Step 4: Simplify right side
    267,567.66x = 36,155,243,846.48
  5. Step 5: Solve for x
    x = 36,155,243,846.48/267,567.66
  6. Step 6: Final answer
    x = 135,125.61

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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.