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Finding the Fourth Proportional to 203,915.87, 281,506.15 and 127,477.45

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Solution

The fourth proportional to 203,915.87, 281,506.15 and 127,477.45 is: 175,982.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,915.87 : 281,506.15 = 127,477.45 : x
  2. Step 2: Convert to fraction form
    203,915.87/281,506.15 = 127,477.45/x
  3. Step 3: Cross multiply
    203,915.87x = 281,506.15 × 127,477.45
  4. Step 4: Simplify right side
    203,915.87x = 35,885,686,161.32
  5. Step 5: Solve for x
    x = 35,885,686,161.32/203,915.87
  6. Step 6: Final answer
    x = 175,982.80

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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.