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Finding the Fourth Proportional to 101,558.84, 140,149.47 and 56,235.86

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Solution

The fourth proportional to 101,558.84, 140,149.47 and 56,235.86 is: 77,604.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,558.84 : 140,149.47 = 56,235.86 : x
  2. Step 2: Convert to fraction form
    101,558.84/140,149.47 = 56,235.86/x
  3. Step 3: Cross multiply
    101,558.84x = 140,149.47 × 56,235.86
  4. Step 4: Simplify right side
    101,558.84x = 7,881,425,273.25
  5. Step 5: Solve for x
    x = 7,881,425,273.25/101,558.84
  6. Step 6: Final answer
    x = 77,604.53

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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.