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Finding the Fourth Proportional to 356,491.88, 534,737.56 and 143,259.82

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Solution

The fourth proportional to 356,491.88, 534,737.56 and 143,259.82 is: 214,889.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,491.88 : 534,737.56 = 143,259.82 : x
  2. Step 2: Convert to fraction form
    356,491.88/534,737.56 = 143,259.82/x
  3. Step 3: Cross multiply
    356,491.88x = 534,737.56 × 143,259.82
  4. Step 4: Simplify right side
    356,491.88x = 76,606,406,592.84
  5. Step 5: Solve for x
    x = 76,606,406,592.84/356,491.88
  6. Step 6: Final answer
    x = 214,889.63

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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.