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Finding the Fourth Proportional to 283,709.52, 425,564.52 and 70,477.20

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Solution

The fourth proportional to 283,709.52, 425,564.52 and 70,477.20 is: 105,715.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,709.52 : 425,564.52 = 70,477.20 : x
  2. Step 2: Convert to fraction form
    283,709.52/425,564.52 = 70,477.20/x
  3. Step 3: Cross multiply
    283,709.52x = 425,564.52 × 70,477.20
  4. Step 4: Simplify right side
    283,709.52x = 29,992,595,788.94
  5. Step 5: Solve for x
    x = 29,992,595,788.94/283,709.52
  6. Step 6: Final answer
    x = 105,715.86

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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.