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Finding the Fourth Proportional to 194,503.76, 291,755.64 and 61,394.40

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Solution

The fourth proportional to 194,503.76, 291,755.64 and 61,394.40 is: 92,091.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,503.76 : 291,755.64 = 61,394.40 : x
  2. Step 2: Convert to fraction form
    194,503.76/291,755.64 = 61,394.40/x
  3. Step 3: Cross multiply
    194,503.76x = 291,755.64 × 61,394.40
  4. Step 4: Simplify right side
    194,503.76x = 17,912,162,464.42
  5. Step 5: Solve for x
    x = 17,912,162,464.42/194,503.76
  6. Step 6: Final answer
    x = 92,091.60

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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.