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Finding the Fourth Proportional to 611,079.50, 916,654.25 and 161,788.67

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Solution

The fourth proportional to 611,079.50, 916,654.25 and 161,788.67 is: 242,692.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,079.50 : 916,654.25 = 161,788.67 : x
  2. Step 2: Convert to fraction form
    611,079.50/916,654.25 = 161,788.67/x
  3. Step 3: Cross multiply
    611,079.50x = 916,654.25 × 161,788.67
  4. Step 4: Simplify right side
    611,079.50x = 148,304,272,505.05
  5. Step 5: Solve for x
    x = 148,304,272,505.05/611,079.50
  6. Step 6: Final answer
    x = 242,692.27

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.