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Finding the Fourth Proportional to 141,899.64, 212,871.32 and 48,383.52

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Solution

The fourth proportional to 141,899.64, 212,871.32 and 48,383.52 is: 72,582.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,899.64 : 212,871.32 = 48,383.52 : x
  2. Step 2: Convert to fraction form
    141,899.64/212,871.32 = 48,383.52/x
  3. Step 3: Cross multiply
    141,899.64x = 212,871.32 × 48,383.52
  4. Step 4: Simplify right side
    141,899.64x = 10,299,463,768.65
  5. Step 5: Solve for x
    x = 10,299,463,768.65/141,899.64
  6. Step 6: Final answer
    x = 72,582.73

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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.