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Finding the Fourth Proportional to 203,706.72, 281,118.36 and 111,833.58

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Solution

The fourth proportional to 203,706.72, 281,118.36 and 111,833.58 is: 154,332.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,706.72 : 281,118.36 = 111,833.58 : x
  2. Step 2: Convert to fraction form
    203,706.72/281,118.36 = 111,833.58/x
  3. Step 3: Cross multiply
    203,706.72x = 281,118.36 × 111,833.58
  4. Step 4: Simplify right side
    203,706.72x = 31,438,472,602.53
  5. Step 5: Solve for x
    x = 31,438,472,602.53/203,706.72
  6. Step 6: Final answer
    x = 154,332.03

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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.