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Finding the Fourth Proportional to 105,339.30, 157,620.68 and 63,244.96

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Solution

The fourth proportional to 105,339.30, 157,620.68 and 63,244.96 is: 94,634.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,339.30 : 157,620.68 = 63,244.96 : x
  2. Step 2: Convert to fraction form
    105,339.30/157,620.68 = 63,244.96/x
  3. Step 3: Cross multiply
    105,339.30x = 157,620.68 × 63,244.96
  4. Step 4: Simplify right side
    105,339.30x = 9,968,713,601.77
  5. Step 5: Solve for x
    x = 9,968,713,601.77/105,339.30
  6. Step 6: Final answer
    x = 94,634.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.