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Finding the Fourth Proportional to 48,755.40, 73,133.10 and 42,194.40

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Solution

The fourth proportional to 48,755.40, 73,133.10 and 42,194.40 is: 63,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,755.40 : 73,133.10 = 42,194.40 : x
  2. Step 2: Convert to fraction form
    48,755.40/73,133.10 = 42,194.40/x
  3. Step 3: Cross multiply
    48,755.40x = 73,133.10 × 42,194.40
  4. Step 4: Simplify right side
    48,755.40x = 3,085,807,274.64
  5. Step 5: Solve for x
    x = 3,085,807,274.64/48,755.40
  6. Step 6: Final answer
    x = 63,291.60

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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.