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Finding the Fourth Proportional to 178,322.64, 267,187.50 and 125,620.80

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Solution

The fourth proportional to 178,322.64, 267,187.50 and 125,620.80 is: 188,222.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,322.64 : 267,187.50 = 125,620.80 : x
  2. Step 2: Convert to fraction form
    178,322.64/267,187.50 = 125,620.80/x
  3. Step 3: Cross multiply
    178,322.64x = 267,187.50 × 125,620.80
  4. Step 4: Simplify right side
    178,322.64x = 33,564,307,500
  5. Step 5: Solve for x
    x = 33,564,307,500/178,322.64
  6. Step 6: Final answer
    x = 188,222.36

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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.