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Finding the Fourth Proportional to 231,273.72, 346,655.76 and 151,278.72

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Solution

The fourth proportional to 231,273.72, 346,655.76 and 151,278.72 is: 226,751.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,273.72 : 346,655.76 = 151,278.72 : x
  2. Step 2: Convert to fraction form
    231,273.72/346,655.76 = 151,278.72/x
  3. Step 3: Cross multiply
    231,273.72x = 346,655.76 × 151,278.72
  4. Step 4: Simplify right side
    231,273.72x = 52,441,639,653.43
  5. Step 5: Solve for x
    x = 52,441,639,653.43/231,273.72
  6. Step 6: Final answer
    x = 226,751.40

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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.