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Finding the Fourth Proportional to 161,351, 242,039.28 and 49,040.96

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Solution

The fourth proportional to 161,351, 242,039.28 and 49,040.96 is: 73,565.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,351 : 242,039.28 = 49,040.96 : x
  2. Step 2: Convert to fraction form
    161,351/242,039.28 = 49,040.96/x
  3. Step 3: Cross multiply
    161,351x = 242,039.28 × 49,040.96
  4. Step 4: Simplify right side
    161,351x = 11,869,838,648.91
  5. Step 5: Solve for x
    x = 11,869,838,648.91/161,351
  6. Step 6: Final answer
    x = 73,565.32

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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.