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Finding the Fourth Proportional to 75,813.81, 113,484.06 and 55,845.81

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Solution

The fourth proportional to 75,813.81, 113,484.06 and 55,845.81 is: 83,594.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,813.81 : 113,484.06 = 55,845.81 : x
  2. Step 2: Convert to fraction form
    75,813.81/113,484.06 = 55,845.81/x
  3. Step 3: Cross multiply
    75,813.81x = 113,484.06 × 55,845.81
  4. Step 4: Simplify right side
    75,813.81x = 6,337,609,252.79
  5. Step 5: Solve for x
    x = 6,337,609,252.79/75,813.81
  6. Step 6: Final answer
    x = 83,594.39

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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.