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Finding the Fourth Proportional to 283,178.88, 425,030.76 and 143,035.92

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Solution

The fourth proportional to 283,178.88, 425,030.76 and 143,035.92 is: 214,686.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,178.88 : 425,030.76 = 143,035.92 : x
  2. Step 2: Convert to fraction form
    283,178.88/425,030.76 = 143,035.92/x
  3. Step 3: Cross multiply
    283,178.88x = 425,030.76 × 143,035.92
  4. Step 4: Simplify right side
    283,178.88x = 60,794,665,784.90
  5. Step 5: Solve for x
    x = 60,794,665,784.90/283,178.88
  6. Step 6: Final answer
    x = 214,686.44

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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.