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Finding the Fourth Proportional to 218,891.91, 302,057.82 and 127,004.07

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Solution

The fourth proportional to 218,891.91, 302,057.82 and 127,004.07 is: 175,258.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,891.91 : 302,057.82 = 127,004.07 : x
  2. Step 2: Convert to fraction form
    218,891.91/302,057.82 = 127,004.07/x
  3. Step 3: Cross multiply
    218,891.91x = 302,057.82 × 127,004.07
  4. Step 4: Simplify right side
    218,891.91x = 38,362,572,515.33
  5. Step 5: Solve for x
    x = 38,362,572,515.33/218,891.91
  6. Step 6: Final answer
    x = 175,258.06

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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.