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Finding the Fourth Proportional to 48,279.58, 72,424.84 and 43,318.74

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Solution

The fourth proportional to 48,279.58, 72,424.84 and 43,318.74 is: 64,983.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,279.58 : 72,424.84 = 43,318.74 : x
  2. Step 2: Convert to fraction form
    48,279.58/72,424.84 = 43,318.74/x
  3. Step 3: Cross multiply
    48,279.58x = 72,424.84 × 43,318.74
  4. Step 4: Simplify right side
    48,279.58x = 3,137,352,813.50
  5. Step 5: Solve for x
    x = 3,137,352,813.50/48,279.58
  6. Step 6: Final answer
    x = 64,983.02

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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.