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Finding the Fourth Proportional to 58,764, 81,105.48 and 34,903.68

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Solution

The fourth proportional to 58,764, 81,105.48 and 34,903.68 is: 48,173.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,764 : 81,105.48 = 34,903.68 : x
  2. Step 2: Convert to fraction form
    58,764/81,105.48 = 34,903.68/x
  3. Step 3: Cross multiply
    58,764x = 81,105.48 × 34,903.68
  4. Step 4: Simplify right side
    58,764x = 2,830,879,720.17
  5. Step 5: Solve for x
    x = 2,830,879,720.17/58,764
  6. Step 6: Final answer
    x = 48,173.71

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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.