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Finding the Fourth Proportional to 267,666.40, 401,499.60 and 109,813.60

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Solution

The fourth proportional to 267,666.40, 401,499.60 and 109,813.60 is: 164,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,666.40 : 401,499.60 = 109,813.60 : x
  2. Step 2: Convert to fraction form
    267,666.40/401,499.60 = 109,813.60/x
  3. Step 3: Cross multiply
    267,666.40x = 401,499.60 × 109,813.60
  4. Step 4: Simplify right side
    267,666.40x = 44,090,116,474.56
  5. Step 5: Solve for x
    x = 44,090,116,474.56/267,666.40
  6. Step 6: Final answer
    x = 164,720.40

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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.