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Finding the Fourth Proportional to 161,956.35, 242,938.17 and 67,200.93

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Solution

The fourth proportional to 161,956.35, 242,938.17 and 67,200.93 is: 100,802.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,956.35 : 242,938.17 = 67,200.93 : x
  2. Step 2: Convert to fraction form
    161,956.35/242,938.17 = 67,200.93/x
  3. Step 3: Cross multiply
    161,956.35x = 242,938.17 × 67,200.93
  4. Step 4: Simplify right side
    161,956.35x = 16,325,670,956.50
  5. Step 5: Solve for x
    x = 16,325,670,956.50/161,956.35
  6. Step 6: Final answer
    x = 100,802.91

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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.