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Finding the Fourth Proportional to 522,113.58, 783,171.05 and 143,037.65

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Solution

The fourth proportional to 522,113.58, 783,171.05 and 143,037.65 is: 214,556.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,113.58 : 783,171.05 = 143,037.65 : x
  2. Step 2: Convert to fraction form
    522,113.58/783,171.05 = 143,037.65/x
  3. Step 3: Cross multiply
    522,113.58x = 783,171.05 × 143,037.65
  4. Step 4: Simplify right side
    522,113.58x = 112,022,944,584.32
  5. Step 5: Solve for x
    x = 112,022,944,584.32/522,113.58
  6. Step 6: Final answer
    x = 214,556.66

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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.