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Finding the Fourth Proportional to 89,167.64, 133,767.86 and 72,674.01

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Solution

The fourth proportional to 89,167.64, 133,767.86 and 72,674.01 is: 109,024.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,167.64 : 133,767.86 = 72,674.01 : x
  2. Step 2: Convert to fraction form
    89,167.64/133,767.86 = 72,674.01/x
  3. Step 3: Cross multiply
    89,167.64x = 133,767.86 × 72,674.01
  4. Step 4: Simplify right side
    89,167.64x = 9,721,446,431.95
  5. Step 5: Solve for x
    x = 9,721,446,431.95/89,167.64
  6. Step 6: Final answer
    x = 109,024.38

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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.