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Finding the Fourth Proportional to 267,706.02, 401,596.06 and 90,263.78

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Solution

The fourth proportional to 267,706.02, 401,596.06 and 90,263.78 is: 135,408.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,706.02 : 401,596.06 = 90,263.78 : x
  2. Step 2: Convert to fraction form
    267,706.02/401,596.06 = 90,263.78/x
  3. Step 3: Cross multiply
    267,706.02x = 401,596.06 × 90,263.78
  4. Step 4: Simplify right side
    267,706.02x = 36,249,578,408.71
  5. Step 5: Solve for x
    x = 36,249,578,408.71/267,706.02
  6. Step 6: Final answer
    x = 135,408.16

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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.