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Finding the Fourth Proportional to 73,753.06, 110,490.81 and 43,678.30

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Solution

The fourth proportional to 73,753.06, 110,490.81 and 43,678.30 is: 65,435.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,753.06 : 110,490.81 = 43,678.30 : x
  2. Step 2: Convert to fraction form
    73,753.06/110,490.81 = 43,678.30/x
  3. Step 3: Cross multiply
    73,753.06x = 110,490.81 × 43,678.30
  4. Step 4: Simplify right side
    73,753.06x = 4,826,050,746.42
  5. Step 5: Solve for x
    x = 4,826,050,746.42/73,753.06
  6. Step 6: Final answer
    x = 65,435.26

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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.