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Finding the Fourth Proportional to 83,790.88, 115,636.08 and 46,072.96

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Solution

The fourth proportional to 83,790.88, 115,636.08 and 46,072.96 is: 63,583.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,790.88 : 115,636.08 = 46,072.96 : x
  2. Step 2: Convert to fraction form
    83,790.88/115,636.08 = 46,072.96/x
  3. Step 3: Cross multiply
    83,790.88x = 115,636.08 × 46,072.96
  4. Step 4: Simplify right side
    83,790.88x = 5,327,696,488.40
  5. Step 5: Solve for x
    x = 5,327,696,488.40/83,790.88
  6. Step 6: Final answer
    x = 63,583.25

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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.