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Finding the Fourth Proportional to 143,953.92, 215,962.47 and 44,121.62

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Solution

The fourth proportional to 143,953.92, 215,962.47 and 44,121.62 is: 66,192.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,953.92 : 215,962.47 = 44,121.62 : x
  2. Step 2: Convert to fraction form
    143,953.92/215,962.47 = 44,121.62/x
  3. Step 3: Cross multiply
    143,953.92x = 215,962.47 × 44,121.62
  4. Step 4: Simplify right side
    143,953.92x = 9,528,614,575.51
  5. Step 5: Solve for x
    x = 9,528,614,575.51/143,953.92
  6. Step 6: Final answer
    x = 66,192.12

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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.