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Finding the Fourth Proportional to 127,570.80, 190,918.80 and 88,204.80

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Solution

The fourth proportional to 127,570.80, 190,918.80 and 88,204.80 is: 132,004.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,570.80 : 190,918.80 = 88,204.80 : x
  2. Step 2: Convert to fraction form
    127,570.80/190,918.80 = 88,204.80/x
  3. Step 3: Cross multiply
    127,570.80x = 190,918.80 × 88,204.80
  4. Step 4: Simplify right side
    127,570.80x = 16,839,954,570.24
  5. Step 5: Solve for x
    x = 16,839,954,570.24/127,570.80
  6. Step 6: Final answer
    x = 132,004.77

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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.