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Finding the Fourth Proportional to 283,821.76, 425,337.24 and 143,416.48

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Solution

The fourth proportional to 283,821.76, 425,337.24 and 143,416.48 is: 214,924.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,821.76 : 425,337.24 = 143,416.48 : x
  2. Step 2: Convert to fraction form
    283,821.76/425,337.24 = 143,416.48/x
  3. Step 3: Cross multiply
    283,821.76x = 425,337.24 × 143,416.48
  4. Step 4: Simplify right side
    283,821.76x = 61,000,369,773.72
  5. Step 5: Solve for x
    x = 61,000,369,773.72/283,821.76
  6. Step 6: Final answer
    x = 214,924.92

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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.