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Finding the Fourth Proportional to 203,304.68, 280,556.58 and 127,981.16

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Solution

The fourth proportional to 203,304.68, 280,556.58 and 127,981.16 is: 176,611.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,304.68 : 280,556.58 = 127,981.16 : x
  2. Step 2: Convert to fraction form
    203,304.68/280,556.58 = 127,981.16/x
  3. Step 3: Cross multiply
    203,304.68x = 280,556.58 × 127,981.16
  4. Step 4: Simplify right side
    203,304.68x = 35,905,956,554.03
  5. Step 5: Solve for x
    x = 35,905,956,554.03/203,304.68
  6. Step 6: Final answer
    x = 176,611.56

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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.