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Finding the Fourth Proportional to 251,866.28, 377,849.28 and 71,953.28

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Solution

The fourth proportional to 251,866.28, 377,849.28 and 71,953.28 is: 107,944.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,866.28 : 377,849.28 = 71,953.28 : x
  2. Step 2: Convert to fraction form
    251,866.28/377,849.28 = 71,953.28/x
  3. Step 3: Cross multiply
    251,866.28x = 377,849.28 × 71,953.28
  4. Step 4: Simplify right side
    251,866.28x = 27,187,495,041.64
  5. Step 5: Solve for x
    x = 27,187,495,041.64/251,866.28
  6. Step 6: Final answer
    x = 107,944.16

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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.