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Finding the Fourth Proportional to 498,222.90, 747,443.70 and 161,206.20

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Solution

The fourth proportional to 498,222.90, 747,443.70 and 161,206.20 is: 241,844.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,222.90 : 747,443.70 = 161,206.20 : x
  2. Step 2: Convert to fraction form
    498,222.90/747,443.70 = 161,206.20/x
  3. Step 3: Cross multiply
    498,222.90x = 747,443.70 × 161,206.20
  4. Step 4: Simplify right side
    498,222.90x = 120,492,558,590.94
  5. Step 5: Solve for x
    x = 120,492,558,590.94/498,222.90
  6. Step 6: Final answer
    x = 241,844.68

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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.