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Finding the Fourth Proportional to 227,591, 314,075.36 and 126,989

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Solution

The fourth proportional to 227,591, 314,075.36 and 126,989 is: 175,244.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,591 : 314,075.36 = 126,989 : x
  2. Step 2: Convert to fraction form
    227,591/314,075.36 = 126,989/x
  3. Step 3: Cross multiply
    227,591x = 314,075.36 × 126,989
  4. Step 4: Simplify right side
    227,591x = 39,884,115,891.04
  5. Step 5: Solve for x
    x = 39,884,115,891.04/227,591
  6. Step 6: Final answer
    x = 175,244.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.