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Finding the Fourth Proportional to 105,751.02, 158,604.66 and 39,189.66

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Solution

The fourth proportional to 105,751.02, 158,604.66 and 39,189.66 is: 58,776.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,751.02 : 158,604.66 = 39,189.66 : x
  2. Step 2: Convert to fraction form
    105,751.02/158,604.66 = 39,189.66/x
  3. Step 3: Cross multiply
    105,751.02x = 158,604.66 × 39,189.66
  4. Step 4: Simplify right side
    105,751.02x = 6,215,662,699.82
  5. Step 5: Solve for x
    x = 6,215,662,699.82/105,751.02
  6. Step 6: Final answer
    x = 58,776.39

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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.