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Finding the Fourth Proportional to 229,364.87, 316,512.56 and 127,396.80

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Solution

The fourth proportional to 229,364.87, 316,512.56 and 127,396.80 is: 175,801.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,364.87 : 316,512.56 = 127,396.80 : x
  2. Step 2: Convert to fraction form
    229,364.87/316,512.56 = 127,396.80/x
  3. Step 3: Cross multiply
    229,364.87x = 316,512.56 × 127,396.80
  4. Step 4: Simplify right side
    229,364.87x = 40,322,687,622.30
  5. Step 5: Solve for x
    x = 40,322,687,622.30/229,364.87
  6. Step 6: Final answer
    x = 175,801.50

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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.