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Finding the Fourth Proportional to 178,465.89, 267,172.87 and 156,322.51

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Solution

The fourth proportional to 178,465.89, 267,172.87 and 156,322.51 is: 234,023.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,465.89 : 267,172.87 = 156,322.51 : x
  2. Step 2: Convert to fraction form
    178,465.89/267,172.87 = 156,322.51/x
  3. Step 3: Cross multiply
    178,465.89x = 267,172.87 × 156,322.51
  4. Step 4: Simplify right side
    178,465.89x = 41,765,134,114.83
  5. Step 5: Solve for x
    x = 41,765,134,114.83/178,465.89
  6. Step 6: Final answer
    x = 234,023.07

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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.