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Finding the Fourth Proportional to 235,220.18, 324,605.40 and 127,790.18

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Solution

The fourth proportional to 235,220.18, 324,605.40 and 127,790.18 is: 176,351.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,220.18 : 324,605.40 = 127,790.18 : x
  2. Step 2: Convert to fraction form
    235,220.18/324,605.40 = 127,790.18/x
  3. Step 3: Cross multiply
    235,220.18x = 324,605.40 × 127,790.18
  4. Step 4: Simplify right side
    235,220.18x = 41,481,382,882.36
  5. Step 5: Solve for x
    x = 41,481,382,882.36/235,220.18
  6. Step 6: Final answer
    x = 176,351.29

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1.5x scale

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.