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Finding the Fourth Proportional to 48,703.20, 73,119.60 and 38,853.60

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Solution

The fourth proportional to 48,703.20, 73,119.60 and 38,853.60 is: 58,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,703.20 : 73,119.60 = 38,853.60 : x
  2. Step 2: Convert to fraction form
    48,703.20/73,119.60 = 38,853.60/x
  3. Step 3: Cross multiply
    48,703.20x = 73,119.60 × 38,853.60
  4. Step 4: Simplify right side
    48,703.20x = 2,840,959,690.56
  5. Step 5: Solve for x
    x = 2,840,959,690.56/48,703.20
  6. Step 6: Final answer
    x = 58,332.10

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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.