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Finding the Fourth Proportional to 91,577.84, 137,241.84 and 56,051.48

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Solution

The fourth proportional to 91,577.84, 137,241.84 and 56,051.48 is: 84,000.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,577.84 : 137,241.84 = 56,051.48 : x
  2. Step 2: Convert to fraction form
    91,577.84/137,241.84 = 56,051.48/x
  3. Step 3: Cross multiply
    91,577.84x = 137,241.84 × 56,051.48
  4. Step 4: Simplify right side
    91,577.84x = 7,692,608,249.92
  5. Step 5: Solve for x
    x = 7,692,608,249.92/91,577.84
  6. Step 6: Final answer
    x = 84,000.76

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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.