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Finding the Fourth Proportional to 267,485.60, 369,167.90 and 165,543.86

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Solution

The fourth proportional to 267,485.60, 369,167.90 and 165,543.86 is: 228,473.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,485.60 : 369,167.90 = 165,543.86 : x
  2. Step 2: Convert to fraction form
    267,485.60/369,167.90 = 165,543.86/x
  3. Step 3: Cross multiply
    267,485.60x = 369,167.90 × 165,543.86
  4. Step 4: Simplify right side
    267,485.60x = 61,113,479,249.29
  5. Step 5: Solve for x
    x = 61,113,479,249.29/267,485.60
  6. Step 6: Final answer
    x = 228,473.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.