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Finding the Fourth Proportional to 161,770.80, 242,583.30 and 61,897.80

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Solution

The fourth proportional to 161,770.80, 242,583.30 and 61,897.80 is: 92,818.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,770.80 : 242,583.30 = 61,897.80 : x
  2. Step 2: Convert to fraction form
    161,770.80/242,583.30 = 61,897.80/x
  3. Step 3: Cross multiply
    161,770.80x = 242,583.30 × 61,897.80
  4. Step 4: Simplify right side
    161,770.80x = 15,015,372,586.74
  5. Step 5: Solve for x
    x = 15,015,372,586.74/161,770.80
  6. Step 6: Final answer
    x = 92,818.81

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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.