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Finding the Fourth Proportional to 247,159.26, 370,605.96 and 78,633.90

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Solution

The fourth proportional to 247,159.26, 370,605.96 and 78,633.90 is: 117,908.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,159.26 : 370,605.96 = 78,633.90 : x
  2. Step 2: Convert to fraction form
    247,159.26/370,605.96 = 78,633.90/x
  3. Step 3: Cross multiply
    247,159.26x = 370,605.96 × 78,633.90
  4. Step 4: Simplify right side
    247,159.26x = 29,142,191,998.04
  5. Step 5: Solve for x
    x = 29,142,191,998.04/247,159.26
  6. Step 6: Final answer
    x = 117,908.56

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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.