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Finding the Fourth Proportional to 543,023.66, 814,574.44 and 143,659.69

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Solution

The fourth proportional to 543,023.66, 814,574.44 and 143,659.69 is: 215,499.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,023.66 : 814,574.44 = 143,659.69 : x
  2. Step 2: Convert to fraction form
    543,023.66/814,574.44 = 143,659.69/x
  3. Step 3: Cross multiply
    543,023.66x = 814,574.44 × 143,659.69
  4. Step 4: Simplify right side
    543,023.66x = 117,021,509,675.46
  5. Step 5: Solve for x
    x = 117,021,509,675.46/543,023.66
  6. Step 6: Final answer
    x = 215,499.84

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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.