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Finding the Fourth Proportional to 288,700.11, 433,022.31 and 88,966.88

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Solution

The fourth proportional to 288,700.11, 433,022.31 and 88,966.88 is: 133,441.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,700.11 : 433,022.31 = 88,966.88 : x
  2. Step 2: Convert to fraction form
    288,700.11/433,022.31 = 88,966.88/x
  3. Step 3: Cross multiply
    288,700.11x = 433,022.31 × 88,966.88
  4. Step 4: Simplify right side
    288,700.11x = 38,524,641,725.98
  5. Step 5: Solve for x
    x = 38,524,641,725.98/288,700.11
  6. Step 6: Final answer
    x = 133,441.73

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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.