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Finding the Fourth Proportional to 104,237.37, 143,846.55 and 56,489.94

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Solution

The fourth proportional to 104,237.37, 143,846.55 and 56,489.94 is: 77,955.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,237.37 : 143,846.55 = 56,489.94 : x
  2. Step 2: Convert to fraction form
    104,237.37/143,846.55 = 56,489.94/x
  3. Step 3: Cross multiply
    104,237.37x = 143,846.55 × 56,489.94
  4. Step 4: Simplify right side
    104,237.37x = 8,125,882,978.71
  5. Step 5: Solve for x
    x = 8,125,882,978.71/104,237.37
  6. Step 6: Final answer
    x = 77,955.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.