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Finding the Fourth Proportional to 196,761.48, 294,966.90 and 72,073.32

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Solution

The fourth proportional to 196,761.48, 294,966.90 and 72,073.32 is: 108,045.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,761.48 : 294,966.90 = 72,073.32 : x
  2. Step 2: Convert to fraction form
    196,761.48/294,966.90 = 72,073.32/x
  3. Step 3: Cross multiply
    196,761.48x = 294,966.90 × 72,073.32
  4. Step 4: Simplify right side
    196,761.48x = 21,259,243,773.11
  5. Step 5: Solve for x
    x = 21,259,243,773.11/196,761.48
  6. Step 6: Final answer
    x = 108,045.76

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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.