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Finding the Fourth Proportional to 384,447.33, 576,686.70 and 131,901.48

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Solution

The fourth proportional to 384,447.33, 576,686.70 and 131,901.48 is: 197,857.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,447.33 : 576,686.70 = 131,901.48 : x
  2. Step 2: Convert to fraction form
    384,447.33/576,686.70 = 131,901.48/x
  3. Step 3: Cross multiply
    384,447.33x = 576,686.70 × 131,901.48
  4. Step 4: Simplify right side
    384,447.33x = 76,065,829,226.32
  5. Step 5: Solve for x
    x = 76,065,829,226.32/384,447.33
  6. Step 6: Final answer
    x = 197,857.61

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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.