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Finding the Fourth Proportional to 77,116.44, 106,409.37 and 45,295.59

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Solution

The fourth proportional to 77,116.44, 106,409.37 and 45,295.59 is: 62,501.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,116.44 : 106,409.37 = 45,295.59 : x
  2. Step 2: Convert to fraction form
    77,116.44/106,409.37 = 45,295.59/x
  3. Step 3: Cross multiply
    77,116.44x = 106,409.37 × 45,295.59
  4. Step 4: Simplify right side
    77,116.44x = 4,819,875,195.68
  5. Step 5: Solve for x
    x = 4,819,875,195.68/77,116.44
  6. Step 6: Final answer
    x = 62,501.27

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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.