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Finding the Fourth Proportional to 118,580.74, 177,871.11 and 56,217.22

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Solution

The fourth proportional to 118,580.74, 177,871.11 and 56,217.22 is: 84,325.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,580.74 : 177,871.11 = 56,217.22 : x
  2. Step 2: Convert to fraction form
    118,580.74/177,871.11 = 56,217.22/x
  3. Step 3: Cross multiply
    118,580.74x = 177,871.11 × 56,217.22
  4. Step 4: Simplify right side
    118,580.74x = 9,999,419,322.51
  5. Step 5: Solve for x
    x = 9,999,419,322.51/118,580.74
  6. Step 6: Final answer
    x = 84,325.83

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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.