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Finding the Fourth Proportional to 229,366.26, 316,523.25 and 128,763.54

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Solution

The fourth proportional to 229,366.26, 316,523.25 and 128,763.54 is: 177,692.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,366.26 : 316,523.25 = 128,763.54 : x
  2. Step 2: Convert to fraction form
    229,366.26/316,523.25 = 128,763.54/x
  3. Step 3: Cross multiply
    229,366.26x = 316,523.25 × 128,763.54
  4. Step 4: Simplify right side
    229,366.26x = 40,756,654,162.31
  5. Step 5: Solve for x
    x = 40,756,654,162.31/229,366.26
  6. Step 6: Final answer
    x = 177,692.46

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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.