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Finding the Fourth Proportional to 283,784.67, 425,664.70 and 70,548.12

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Solution

The fourth proportional to 283,784.67, 425,664.70 and 70,548.12 is: 105,819.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,784.67 : 425,664.70 = 70,548.12 : x
  2. Step 2: Convert to fraction form
    283,784.67/425,664.70 = 70,548.12/x
  3. Step 3: Cross multiply
    283,784.67x = 425,664.70 × 70,548.12
  4. Step 4: Simplify right side
    283,784.67x = 30,029,844,555.83
  5. Step 5: Solve for x
    x = 30,029,844,555.83/283,784.67
  6. Step 6: Final answer
    x = 105,819.12

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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.