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Finding the Fourth Proportional to 83,290.81, 114,942.23 and 45,564.25

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Solution

The fourth proportional to 83,290.81, 114,942.23 and 45,564.25 is: 62,879.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,290.81 : 114,942.23 = 45,564.25 : x
  2. Step 2: Convert to fraction form
    83,290.81/114,942.23 = 45,564.25/x
  3. Step 3: Cross multiply
    83,290.81x = 114,942.23 × 45,564.25
  4. Step 4: Simplify right side
    83,290.81x = 5,237,256,503.28
  5. Step 5: Solve for x
    x = 5,237,256,503.28/83,290.81
  6. Step 6: Final answer
    x = 62,879.16

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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.