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Finding the Fourth Proportional to 161,473.92, 242,211.52 and 43,145.60

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Solution

The fourth proportional to 161,473.92, 242,211.52 and 43,145.60 is: 64,718.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,473.92 : 242,211.52 = 43,145.60 : x
  2. Step 2: Convert to fraction form
    161,473.92/242,211.52 = 43,145.60/x
  3. Step 3: Cross multiply
    161,473.92x = 242,211.52 × 43,145.60
  4. Step 4: Simplify right side
    161,473.92x = 10,450,361,357.31
  5. Step 5: Solve for x
    x = 10,450,361,357.31/161,473.92
  6. Step 6: Final answer
    x = 64,718.57

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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.