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Finding the Fourth Proportional to 73,235.60, 109,853.40 and 48,309.20

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Solution

The fourth proportional to 73,235.60, 109,853.40 and 48,309.20 is: 72,463.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,235.60 : 109,853.40 = 48,309.20 : x
  2. Step 2: Convert to fraction form
    73,235.60/109,853.40 = 48,309.20/x
  3. Step 3: Cross multiply
    73,235.60x = 109,853.40 × 48,309.20
  4. Step 4: Simplify right side
    73,235.60x = 5,306,929,871.28
  5. Step 5: Solve for x
    x = 5,306,929,871.28/73,235.60
  6. Step 6: Final answer
    x = 72,463.80

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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.