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Finding the Fourth Proportional to 251,471.52, 377,090.64 and 146,320.56

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Solution

The fourth proportional to 251,471.52, 377,090.64 and 146,320.56 is: 219,412.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,471.52 : 377,090.64 = 146,320.56 : x
  2. Step 2: Convert to fraction form
    251,471.52/377,090.64 = 146,320.56/x
  3. Step 3: Cross multiply
    251,471.52x = 377,090.64 × 146,320.56
  4. Step 4: Simplify right side
    251,471.52x = 55,176,113,615.56
  5. Step 5: Solve for x
    x = 55,176,113,615.56/251,471.52
  6. Step 6: Final answer
    x = 219,412.97

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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.