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Finding the Fourth Proportional to 267,567.84, 401,410.92 and 90,069

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Solution

The fourth proportional to 267,567.84, 401,410.92 and 90,069 is: 135,123.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,567.84 : 401,410.92 = 90,069 : x
  2. Step 2: Convert to fraction form
    267,567.84/401,410.92 = 90,069/x
  3. Step 3: Cross multiply
    267,567.84x = 401,410.92 × 90,069
  4. Step 4: Simplify right side
    267,567.84x = 36,154,680,153.48
  5. Step 5: Solve for x
    x = 36,154,680,153.48/267,567.84
  6. Step 6: Final answer
    x = 135,123.41

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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.