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Finding the Fourth Proportional to 48,736.80, 73,191.60 and 37,670.40

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Solution

The fourth proportional to 48,736.80, 73,191.60 and 37,670.40 is: 56,572.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,736.80 : 73,191.60 = 37,670.40 : x
  2. Step 2: Convert to fraction form
    48,736.80/73,191.60 = 37,670.40/x
  3. Step 3: Cross multiply
    48,736.80x = 73,191.60 × 37,670.40
  4. Step 4: Simplify right side
    48,736.80x = 2,757,156,848.64
  5. Step 5: Solve for x
    x = 2,757,156,848.64/48,736.80
  6. Step 6: Final answer
    x = 56,572.38

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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.