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Finding the Fourth Proportional to 272,903.28, 376,639.82 and 165,472.98

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Solution

The fourth proportional to 272,903.28, 376,639.82 and 165,472.98 is: 228,372.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,903.28 : 376,639.82 = 165,472.98 : x
  2. Step 2: Convert to fraction form
    272,903.28/376,639.82 = 165,472.98/x
  3. Step 3: Cross multiply
    272,903.28x = 376,639.82 × 165,472.98
  4. Step 4: Simplify right side
    272,903.28x = 62,323,712,713.61
  5. Step 5: Solve for x
    x = 62,323,712,713.61/272,903.28
  6. Step 6: Final answer
    x = 228,372.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.