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Finding the Fourth Proportional to 104,763.78, 144,548.76 and 61,744.98

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Solution

The fourth proportional to 104,763.78, 144,548.76 and 61,744.98 is: 85,193.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,763.78 : 144,548.76 = 61,744.98 : x
  2. Step 2: Convert to fraction form
    104,763.78/144,548.76 = 61,744.98/x
  3. Step 3: Cross multiply
    104,763.78x = 144,548.76 × 61,744.98
  4. Step 4: Simplify right side
    104,763.78x = 8,925,160,295.22
  5. Step 5: Solve for x
    x = 8,925,160,295.22/104,763.78
  6. Step 6: Final answer
    x = 85,193.19

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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.