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Finding the Fourth Proportional to 356,390.04, 534,584.88 and 143,157.82

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Solution

The fourth proportional to 356,390.04, 534,584.88 and 143,157.82 is: 214,736.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,390.04 : 534,584.88 = 143,157.82 : x
  2. Step 2: Convert to fraction form
    356,390.04/534,584.88 = 143,157.82/x
  3. Step 3: Cross multiply
    356,390.04x = 534,584.88 × 143,157.82
  4. Step 4: Simplify right side
    356,390.04x = 76,530,006,025.76
  5. Step 5: Solve for x
    x = 76,530,006,025.76/356,390.04
  6. Step 6: Final answer
    x = 214,736.66

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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.