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Finding the Fourth Proportional to 267,315.40, 400,973.10 and 165,838.60

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Solution

The fourth proportional to 267,315.40, 400,973.10 and 165,838.60 is: 248,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,315.40 : 400,973.10 = 165,838.60 : x
  2. Step 2: Convert to fraction form
    267,315.40/400,973.10 = 165,838.60/x
  3. Step 3: Cross multiply
    267,315.40x = 400,973.10 × 165,838.60
  4. Step 4: Simplify right side
    267,315.40x = 66,496,817,541.66
  5. Step 5: Solve for x
    x = 66,496,817,541.66/267,315.40
  6. Step 6: Final answer
    x = 248,757.90

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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.