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Finding the Fourth Proportional to 178,459.86, 267,163.85 and 156,316.49

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Solution

The fourth proportional to 178,459.86, 267,163.85 and 156,316.49 is: 234,014.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,459.86 : 267,163.85 = 156,316.49 : x
  2. Step 2: Convert to fraction form
    178,459.86/267,163.85 = 156,316.49/x
  3. Step 3: Cross multiply
    178,459.86x = 267,163.85 × 156,316.49
  4. Step 4: Simplify right side
    178,459.86x = 41,762,114,341.86
  5. Step 5: Solve for x
    x = 41,762,114,341.86/178,459.86
  6. Step 6: Final answer
    x = 234,014.05

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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.