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Finding the Fourth Proportional to 267,640.16, 401,681.10 and 134,558.24

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Solution

The fourth proportional to 267,640.16, 401,681.10 and 134,558.24 is: 201,948.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,640.16 : 401,681.10 = 134,558.24 : x
  2. Step 2: Convert to fraction form
    267,640.16/401,681.10 = 134,558.24/x
  3. Step 3: Cross multiply
    267,640.16x = 401,681.10 × 134,558.24
  4. Step 4: Simplify right side
    267,640.16x = 54,049,501,857.26
  5. Step 5: Solve for x
    x = 54,049,501,857.26/267,640.16
  6. Step 6: Final answer
    x = 201,948.40

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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.