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Finding the Fourth Proportional to 217,338.25, 299,927.88 and 126,757.03

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Solution

The fourth proportional to 217,338.25, 299,927.88 and 126,757.03 is: 174,925.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,338.25 : 299,927.88 = 126,757.03 : x
  2. Step 2: Convert to fraction form
    217,338.25/299,927.88 = 126,757.03/x
  3. Step 3: Cross multiply
    217,338.25x = 299,927.88 × 126,757.03
  4. Step 4: Simplify right side
    217,338.25x = 38,017,967,283.00
  5. Step 5: Solve for x
    x = 38,017,967,283.00/217,338.25
  6. Step 6: Final answer
    x = 174,925.34

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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.