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Finding the Fourth Proportional to 127,713.97, 191,570.99 and 52,751.72

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Solution

The fourth proportional to 127,713.97, 191,570.99 and 52,751.72 is: 79,127.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,713.97 : 191,570.99 = 52,751.72 : x
  2. Step 2: Convert to fraction form
    127,713.97/191,570.99 = 52,751.72/x
  3. Step 3: Cross multiply
    127,713.97x = 191,570.99 × 52,751.72
  4. Step 4: Simplify right side
    127,713.97x = 10,105,699,224.60
  5. Step 5: Solve for x
    x = 10,105,699,224.60/127,713.97
  6. Step 6: Final answer
    x = 79,127.59

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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.